Hot Springs in Greece: 14 Best Thermal Springs and Baths (2026)

What Greek Thermal Springs Actually Are

Greece's geothermal activity is a direct consequence of its tectonic position — the African plate subducting beneath the Eurasian creates the heat gradient that drives the spring network. Water infiltrates the ground, descends to depths where geothermal heating raises the temperature to 50–100°C, and returns to the surface carrying dissolved minerals: sulphur compounds, sodium bicarbonate, calcium, magnesium, potassium, silicon, radioactive isotopes (at low therapeutic levels at several sites), and trace elements that vary by geology.

The therapeutic effects of thermal mineral bathing are documented in a substantial body of balneotherapy research: improved circulation (vasodilation in warm water), reduced inflammation markers (particularly relevant for arthritis and skin conditions), improved sleep (the post-bath drop in core body temperature is a primary sleep-onset signal), reduced cortisol (the hormonal stress marker), and specific mineral absorption effects for individual spring chemistries.

Soaking in spring water as medicine is old in Greece. Greek physicians were prescribing particular spring waters by the 5th century BC, Hippocrates among them, and the healing sanctuaries of Asclepius were routinely built near springs. Many of the places in this guide have been in use for well over 2,000 years.

The big spa towns, Edipsos and Loutraki among them, run physician-supervised programmes alongside ordinary bathing. The wild springs in this guide have no staff, no lifeguards and no temperature control, so test the water with your hand before you get in. The health benefits mentioned here are traditional uses, not medical advice.

Which Greek Hot Spring Should You Visit?

Closest to Athens: Lake Vouliagmeni on the Athens Riviera is 30 to 40 minutes by car. Loutraki is about 90 minutes away. Edipsos on Evia is about 2 hours' drive to the Arkitsa ferry plus a 45-minute crossing, so it suits an overnight stay better than a day trip.

Free: Thermopylae, Therma beach on Kos and the Koniaviti baths at Kamena Vourla were free to enter according to the sources I checked. None of them has staff or facilities.

Cheapest paid entry: Loutra Pozar's open pools and waterfall cost €3 in 2025, and the large outdoor pool €5. Kaiafas was €9 for the outdoor pool and €11 for the thermal baths.

Wildest setting: Therma beach on Kos, where hot water seeps into the sea, followed by the sea-edge pools on Ikaria and Lesvos.

On an island: Kos, Lesvos, Ikaria, Samothraki, Kythnos and Santorini's Palea Kameni all have hot water, and each is covered below.

In the north: Loutra Pozar, near Edessa, keeps its water at 37°C all year, which makes it a good winter stop.

For a full spa stay: Edipsos and Loutraki, where hotels, treatment rooms and physician-supervised programmes sit beside the baths.

1. Edipsos — The Most Historically Significant

Location: Northern Evia island

Access: Ferry from Arkitsa (on the Athens–Lamia highway, about 2 hours' drive from Athens), with a crossing of around 45 minutes. The car ferry runs frequently, and you can check Arkitsa–Edipsos crossing times before you drive up.

Temperature: up to about 80°C at the hottest vents, cooled to roughly 37–40°C for bathing | Entry cost: set by each facility, so ask on arrival | Season: year-round (busiest June–September)

Edipsos (also written Aidipsos or Loutra Aidipsou) is the largest and most historically significant thermal destination in Greece. The town has approximately 80 spring vents — the highest concentration in the Mediterranean — producing water at temperatures ranging from mildly warm to scalding.

The ancient sources mention Sulla's recovery from a chronic skin condition here in the 80s BC; Hadrian's visit is documented; Aristotle's reference in his natural history writings is the oldest. The thermal infrastructure that exists today — a waterfront promenade of Art Deco spa hotels, a municipal thermal facility, and several private bathhouses — dates mostly from the late 19th and early 20th centuries, when Edipsos was the most fashionable therapeutic destination in the eastern Mediterranean.

The water: Edipsos is known for hot sulphurous mineral water, traditionally used for joint pain, rheumatic complaints and skin conditions. The hottest sources emerge at roughly 80°C, so the bathhouses mix in cooler water to reach a comfortable 37–40°C.

What to do:

The public spa: The town's public thermal spa, run by ETAD, reopened to visitors in 2022. It is the simplest place to start if you want a plain soak rather than a hotel spa. Not every part of the complex was open when it reopened, and prices and hours change, so ask locally what is running.

Waterfront spa hotels: A string of Art Deco and modernist spa hotels line the Edipsos waterfront. Thermae Sylla Spa & Wellness Hotel is the best known, with private thermal pools and a full spa programme, and the smaller Aigli Hotel Spa is more intimate. Some hotels let day visitors use the thermal pools, so ask at reception about rates.

Book the Thermae Sylla Spa & Wellness Hotel on Booking.com, or compare rates and availability on Agoda.

The wild spring by the sea: A lesser-known feature: along the Edipsos shoreline, several natural spring vents open directly at the sea's edge and into the shallow water, where the thermal spring and the cold sea mix in visible thermal plumes. Locals swim here — particularly in the cooler months — in water that is 30–35°C from the spring mixing. No facilities; no fee; accessible by walking along the waterfront promenade 200m from the main bathhouse district.

Getting there: Drive from Athens to Arkitsa on the Athens–Lamia highway (about 2 hours), then take the car ferry to Edipsos (about 45 minutes, frequent departures). Edipsos is also reachable by bus from Athens (Liosion Station), changing at Halkida or Arkitsa. The northern Greece travel guide covers the wider Evia context.

Stay: Thermae Sylla Spa or one of the smaller boutique hotels in town. Edipsos works best as an overnight or a weekend. As a day trip from Athens it is a long one, because you need about 2 hours each way to Arkitsa plus the crossing.

2. Loutraki — Closest to Athens

Location: Loutraki, Corinthia, northeastern Peloponnese | Access: about 90 minutes from Athens by car | Temperature: up to about 31°C at the hottest spring (the coolest of the major spring towns) | Entry cost: paid at the Loutraki Hydrotherapy Centre, so ask for current prices | Season: year-round

Loutraki is the most accessible spa town from Athens, 90 minutes by car or bus, and also the most developed in the resort sense. Internationally it is known as a casino town, which has nothing to do with the baths. The Loutraki Hydrotherapy Centre runs a physician-supervised programme, and the springs are traditionally used for kidney and urinary complaints.

The water: Loutraki's spring water is bottled and sold as mineral water as well as used for bathing. It is on the cooler side for a thermal spring, at up to about 31°C.

What to do:

Loutraki Hydrotherapy Centre: A modern facility with thermal pools, supervised hydrotherapy and physician consultations for guests who want a full programme. I couldn't confirm current day-access prices, so ask when you arrive.

Isthmus and Corinth Canal: Loutraki sits at the mouth of the Corinthian isthmus — the 6.4 km canal that connects the Gulf of Corinth to the Saronic Gulf is 5 minutes from the thermal centre and worth a brief visit. The Ancient Corinth travel guide covers the broader archaeological context accessible from Loutraki.

Best as: A thermal bathing day trip from Athens combined with Ancient Corinth and the canal. The combination of the Loutraki spa morning + canal stop + Corinth archaeological site + Nafplio lunch makes an exceptional Peloponnese day circuit. Or a 2–3 night wellness break closest to Athens for travellers with limited time.

3. Methana — Volcanic Peninsula in the Saronic Gulf

Location: Methana peninsula, Saronic Gulf

Access: Ferry from Piraeus (2.5 hrs) or from Aegina (45 min). Methana is reachable by ferry from Piraeus (2.5 hrs) or, more scenically, from Aegina (45 min) — compare Piraeus and Aegina ferry schedules to pair it with a Saronic island day.

Temperature: warm sulphurous water | Entry cost: low, at the municipal baths (ask on arrival) | Season: check locally

Methana is a volcanic peninsula in the Saronic Gulf, a landscape of black lava formations, sulphurous coastal vents and a small spa town that receives almost no international visitors. The sulphurous water is traditionally used for skin conditions such as eczema and psoriasis.

The landscape: Methana's volcano last erupted around 230 BC, and the black lava fields from that era give the peninsula an alien look. A marked trail climbs to the crater and is one of the more unusual walks in the Saronic Gulf. It also explains the water chemistry: the sulphur comes from the same volcanic system.

What to do:

Municipal thermal baths: Simple, functional and inexpensive, and genuinely sulphurous in the way that tells you at once the water is active. Private bathing rooms with mineral-water tubs; no luxury, but no pretence either.

Ferry from Aegina: Aegina is 45 minutes by ferry — the combination of a morning at the Methana thermal baths and an afternoon at the Temple of Aphaia on Aegina makes a genuinely unusual Saronic day trip. The Saronic islands guide covers the inter-island logistics.

Best as: A side trip from Aegina or Poros (connected by regular ferry), or an unusual destination for travellers doing the Saronic circuit who want something entirely off the tourist circuit.

4. Kaiafas — The Thermal Cave

Location: Kaiafas, western Peloponnese | Access: drive from Kalamata (about 1.5 hours) or from Patras (about 2 hours) | Temperature: 31–34°C | Entry cost: in 2025, €11 for the thermal baths and €9 for the outdoor pool (reduced €8 and €7) | Season: in 2025 the centre opened 9am to 5pm daily from 15 June to 20 October

Kaiafas has the best backstory of the mainland spas. The warm sulphurous water comes out of the cave of the Anigrides Nymphs, and the Kaiafas Hydrotherapy Centre pipes it into individual tubs and an outdoor pool.

Practical note: The centre is seasonal, so check its opening dates before you drive out. I couldn't confirm whether visitors can enter the cave itself, so plan for the baths rather than a cave swim.

The water: Sulphurous and warm, at 31–34°C, and traditionally used for joint and skin complaints.

Combine with: Olympia is the closest major sight, and Pylos and Methoni lie further south down the coast. Together they make a logical western Peloponnese route with Kaiafas as the unexpected soak.

Best as: a stop on a western Peloponnese road trip rather than a destination on its own.

5. Samothraki — Wild Thermal Pools in a Mountain River

Location: Samothraki island, northern Aegean

Access: Samothraki is only reached by sea, with crossings from Alexandroupoli taking around two hours — book the Alexandroupoli–Samothraki ferry ahead in summer, as sailings fill and the schedule thins outside peak season.

Temperature: hot springs at Therma; the river pools in the interior are cold | Entry cost: free at the river pools; ask locally about the baths at Therma | Season: May–October is the practical season

Samothraki is one of the most remote and least-visited large Greek islands, a mountain rising from the northern Aegean covered in oak and plane forest, with waterfalls, gorges and rock pools. The hot springs are at Therma on the north coast. The interior is better known for its cold freshwater pools, which make a good contrast with the hot water.

Therma (Loutra): The thermal area is on the north coast, in the village of Therma, where hot mineral water is channelled into baths. I couldn't confirm a current temperature or entry price, so don't plan around a number and ask locally on arrival.

The Vathres river pools: In the interior, the Fonias River passes through a chain of icy, crystal-clear rock pools (the vathres) below the island's mountains, reached on foot through forest. They are freshwater plunge pools, not thermal ones, but a swim in them after the hot baths at Therma is the classic Samothraki combination.

Combine with: Samothraki's other defining feature — the ancient Sanctuary of the Great Gods (Kabiria), where Alexander the Great's parents met at an initiation ceremony and one of the most important mystery cult sites in the ancient Greek world. The combination of the ancient sanctuary and the thermal pools makes Samothraki one of the most richly layered single-island destinations in Greece. The Samothrace travel guide covers the full island.

Best as: A destination for travellers willing to make the ferry effort (Alexandroupoli is 3 hrs from Thessaloniki) for an island that combines extraordinary natural landscape, ancient ritual history, and wild thermal bathing in a single location.

6. Ikaria (Therma) — The Blue Zone Springs

Location: Therma village, northeastern Ikaria

Access: Ikaria's springs sit 2 km from the main port at Agios Kirykos, reached by ferry from Piraeus or via connecting Aegean islands — check ferry routes to Ikaria and book early, since sailings are limited and popular in the therapeutic season.

Temperature: 60–70°C natural flow, diluted to 37–40°C in bathhouses | Entry cost: €5–8 per session | Season: May–October (traditional therapeutic season); some facilities year-round

Ikaria's thermal springs sit inside one of the world's best-known longevity stories. The island is a Blue Zone, and islanders have been using the hot springs for generations.

The water: Ikaria's springs are among the more radioactive therapeutic springs in Greece, which is why bathing sessions are kept short. The water emerges at 60–70°C and is cooled for bathing in the three bathhouses at Therma village.

The experience: The Therma bathhouses are not luxury facilities — they are simple buildings with private bathing rooms and a supervised pool, operated at a local health infrastructure level rather than a resort level. The social atmosphere is specific: local Ikarian families who have been taking the waters for generations share the facility with a small number of informed visitors. The conversations that develop — between the tubs, in the waiting area, on the walk back to the port — are the most direct available contact with the Blue Zone culture that researchers have been documenting.

The wild cliffside pools: A series of natural rock pools at the sea's edge, below the coastal road between Therma and Agios Kirykos, collect geothermal spring water mixed with seawater at 30–35°C. No facilities; accessed by scrambling over rocks (ask locally for the current access point). The combination of thermal spring and open sea — Mediterranean light, the sound of water on rock, hands in water that has risen from geological depth — is one of the more quietly extraordinary available experiences in the Aegean.

A full Ikaria Blue Zone experience — the thermal springs as part of a week-long immersion in the island's slow-life culture rather than as a day excursion.

7. Lesvos — Four Springs on One Island

Lesvos has more usable hot springs than any other Greek island, and there are four of them. Eftalou on the north coast is an Ottoman bathhouse at the water's edge with its overflow running into the sea beside it. Thermi, eleven kilometres from Mytilene, is the most developed. Polichnitos in the south has among the hottest spring water in Europe. Gera, on its own gulf, is the one locals use. Our guide to things to do in Lesvos covers all four and which are free, and the Lesvos travel guide has the driving logistics.

8. Lake Vouliagmeni — The Thermal Lake Near Athens

Location: Vouliagmeni, Athens Riviera | Access: 30–40 minutes by car from central Athens; by public transport, Metro line 2 to Argyroupoli or Elleniko, then bus 122, about an hour from Syntagma | Temperature: 22–29°C | Entry cost: €17 on weekdays and €19 at weekends and holidays for adults in summer 2025; children under 6 free | Season: open all year, with hours that change by season

Lake Vouliagmeni is the honest answer to hot springs near Athens, with one caveat: the water is warm rather than hot. It is a brackish, spring-fed lake in a sunken cave under a cliff on the Athens Riviera, held at about 22°C through the year and up to about 29°C in summer. You swim in it rather than soak in it, and because it stays open in winter, the warm water is much of the appeal then.

What to expect: Loungers and platforms around the water, lockers, a bar and restaurant, free parking and a small spa that needs booking. You must shower before you get in, and sun cream is not allowed. Small Gara Rufa fish nibble dead skin from your feet, which people either love or hate. The sources I checked disagreed on closing time (between roughly 6pm and 8pm in summer), so check the lake's own hours before you go.

Best as: a half-day on the Athens Riviera. It pairs naturally with the best beaches near Athens and with Cape Sounion further down the coast, and it slots easily into our list of day trips from Athens.

9. Loutra Pozar — Thermal Waterfalls Near Edessa

Location: Loutra Pozar, near Edessa, northern Greece | Access: drive; there is no public transport worth relying on | Temperature: 37°C all year | Entry cost: in 2025, €3 for the open pools and waterfall, €5 for the large outdoor pool, €7 for a three-entry day pass to the open pools, and from €13 for a private indoor pool or hammam for one or two people | Hours: the main spa runs roughly 7am to 9pm, some pools stay open much later, and private pools are booked in 30-minute slots

Loutra Pozar is the best-known hot spring in northern Greece. The water holds 37°C through the year, so the open pools and the waterfall work in snow as well as in summer. It is also the most structured of the cheap springs, with a large outdoor pool, hydrotherapy pools, private indoor pools and hammams.

I found no free bathing option at the main site, so budget a few euros. One source also describes the baths as open 24 hours, which doesn't match the posted spa hours, so check before a long drive.

Best as: a stop combined with the waterfalls of Edessa; our Edessa travel guide covers the town, and the baths also appear in our day trips from Thessaloniki.

10. Therma Beach, Kos — Free Hot Water Meeting the Sea

Location: Agios Fokas, southeast Kos, about 10–12 km from Kos Town | Access: drive or taxi, then a steep dirt path of about 10 minutes down to the beach | Temperature: roughly 40–50°C where the spring emerges, cooler as it mixes with the sea | Entry cost: free | Facilities: none

Therma beach, also called Empros Thermes, is the most elemental hot spring in the Dodecanese. Hot sulphurous water seeps through the rocks and into a pool at the edge of the sea, where it mixes with cold water, so you choose your temperature by moving along the pool. It is an unorganised beach with no toilets, umbrellas or changing rooms, and there is a cafe at the top of the path.

Avoid the hottest point where the spring meets the sea, expect a strong sulphur smell, and limit your soak to around 35 minutes. Wear shoes for the path down. The Kos travel guide covers getting around the island.

11. Thermopylae — Free Sulphur Pools Beside the Battlefield

Location: opposite the Leonidas monument at the foot of Mount Kallidromo, about 16 km from Lamia | Access: drive or taxi from Lamia; there is no direct bus | Temperature: very warm at the source (I couldn't find a measured figure) | Entry cost: free | Open: at all hours

The name Thermopylae means hot gates, and the hot springs that gave the pass its name are still running. Warm mineral water runs over crusted rocks into natural pools beside the road, directly opposite the monument to Leonidas and the Spartans.

There are no facilities and no lifeguard. The mineral deposits are slippery, the sulphur smell is strong and parking is informal. Sources disagree on the distance from Athens, so check your route rather than trusting any single figure. It sits on the main road north, which makes it a natural stop on the way to Meteora or northern Greece.

Best as: a free add-on to the battlefield visit. See our guide to the Battle of Thermopylae and our Thermopylae travel guide for the site itself.

More Hot Springs Worth Knowing

Three more places are worth knowing about, though I found less reliable detail on them than on the springs above.

Kamena Vourla: The Free Koniaviti Baths

Kamena Vourla is a spa town on the Fthiotida coast, on the way north from Athens, with warm springs in the 30–42°C range depending on the source. The Koniaviti baths, about 1 km west of the town centre, are natural pools at around 33°C that were free to enter, with no facilities.

Kythnos: Loutra Bay

Loutra bay, in the northeast of Kythnos, has two springs. Agioi Anargyroi is a saline spring in an indoor bath building at up to 36°C, and Kakavos is an outdoor spring about 50 metres away at up to 52°C, with iodine, bromide and sodium chloride in the water. The spa building dates from 1857. I couldn't confirm current opening times or prices, so ask locally. The Kythnos travel guide covers the island.

Santorini: Volcanic Hot Springs off Palea Kameni

Off the islet of Palea Kameni in the caldera, you swim about 30 metres from the boat into water heated by the volcano, at roughly 30–35°C where the springs mix with the sea. There is no beach and no pier, and the stop lasts around 30 minutes on a volcano boat tour. Tours started from around €32 on one operator page I checked. Our Santorini travel guide covers the rest of the island.

Practical Planning: Visiting Greek Thermal Springs

The basic protocol: Arrive hydrated. Do not eat a heavy meal in the 2 hours before bathing. Start with shorter sessions (15–20 min) and extend over subsequent visits. The recommended therapeutic protocol is 20–30 min immersion, 2–3 times daily, for 7–10 days minimum. For a day visit, a single 30-minute session with a cool shower between provides the most single-session benefit.

What to bring: Swimwear (not optional); a large towel; plastic sandals or water shoes (pool surfaces and cave floors are often rough); a water bottle. For the wild springs (Samothraki, Kaiafas, Ikaria seafront), add: walking shoes for the approach, a change of clothes, and cash (facilities are basic and card machines are unreliable).

Staying connected: Non-EU visitors face high roaming charges on Greek networks. Activate a Yesim eSIM before you fly — instant setup, no physical SIM, works the moment your plane lands in Athens.

Medical precautions: Some springs, Ikaria's among them, are mildly radioactive, and 20–30 minutes is the usual guidance for a session. Check with a doctor before using hot springs if you have a heart condition, are pregnant or have an acute inflammation, and ask locally about any spring you are unsure of.

Accommodation near springs:

Edipsos: Thermae Sylla Spa & Wellness Hotel, the best-known spa hotel in town, with direct thermal water access

Loutraki: spa hotels near the Hydrotherapy Centre; look for one with its own thermal pool

• Samothraki: Samothrace travel guide for accommodation options near the thermal area
• Ikaria: Ikaria travel guide for accommodation near Therma

Full seasonal guidance: Visiting Greece in September — the optimal thermal spring season when summer crowds have cleared, the landscape is beautiful, and the therapeutic programme is most comfortable. Visiting Greece in winter — the Edipsos and Loutraki facilities operate year-round, and winter is when local Greeks use them most intensively.

Plan Your Greek Thermal Springs Visit

The thermal springs:

• Samothrace Travel Guide — wild thermal pools in the northern Aegean
• Ikaria Travel Guide — Blue Zone springs
• Ikaria Blue Zone Guide — thermal springs in cultural context
• Saronic Islands Guide — Methana peninsula access
• Aegina Travel Guide — combine with Methana ferry

Edessa travel guide - Loutra Pozar has no public transport worth attempting, so most visitors drive or base themselves in Edessa

Kos Travel Guide - Therma beach and getting around the island

Thermopylae Travel Guide - the free sulphur pools and the battlefield

Kythnos Travel Guide - Loutra bay springs

Best Day Trips from Athens - add Lake Vouliagmeni to an Athens day

Best Day Trips from Thessaloniki - the Pozar baths

Regional contexts:

• Peloponnese Travel Guide — Kaiafas, Loutraki, Methana circuit
• Pylos Travel Guide — nearest town to Kaiafas
• Olympia Travel Guide — combine with western Peloponnese spring circuit
• Northern Greece Travel Guide — Edipsos Evia access from northern Greece

The wellness tradition:

• Hushpitality in Greece — full wellness travel context
• Ancient Greek Healing Guide — Hippocratic spring medicine
• Euphoria Retreat Review — premium property with on-site thermal circuit
• Best Silent Retreats Greece — retreats that incorporate spring bathing

Seasonal guidance:

• Visiting Greece in September — optimal season
• Visiting Greece in Winter — year-round spring access

Greek Hot Springs FAQ

Are there hot springs in Greece?

Yes. Greece has hot springs on the mainland and on islands including Kos, Lesvos, Ikaria, Samothraki, Kythnos and Santorini. The best known are the spa town of Edipsos on Evia, Loutraki near Corinth, Loutra Pozar near Edessa and the thermal lake at Vouliagmeni near Athens.

Where are the hot springs near Athens?

The closest is Lake Vouliagmeni, 30 to 40 minutes by car, a spring-fed lake at 22–29°C that charged €17 on weekdays in summer 2025. Loutraki is about 90 minutes away. Edipsos on Evia is about 2 hours' drive to the Arkitsa ferry plus a 45-minute crossing, so it works better as an overnight. Thermopylae, with free sulphur pools, is further north.

Are there free hot springs in Greece?

Yes. Thermopylae, Therma beach on Kos and the Koniaviti baths near Kamena Vourla were free to enter according to the sources I checked, and the sea-edge pools on Ikaria and along the Edipsos shoreline cost nothing either. None has lifeguards or facilities.

Which Greek islands have hot springs?

Kos (Therma beach), Lesvos (Eftalou, Thermi, Polichnitos and Gera), Ikaria (Therma), Samothraki (Therma), Kythnos (Loutra) and Santorini (Palea Kameni, reached by boat). Evia, home to the spa town of Edipsos, is also an island.

What are the best thermal springs in Greece?

Edipsos on Evia is the most developed, with Art Deco spa hotels and a public spa. Loutra Pozar near Edessa is the best known in the north, with 37°C pools and a thermal waterfall. Lake Vouliagmeni is the easiest from Athens. Therma beach on Kos is the best free, wild option, and Ikaria's springs sit inside a Blue Zone.

Are Greek thermal springs safe?

Established spas are supervised and keep to bathing temperatures. Wild springs are not: there are no lifeguards, the water can be scalding at the source and mineral deposits are slippery, so test the water with your hand and keep sessions short. Some springs, including Ikaria's, are mildly radioactive, and 20 to 30 minutes is the usual guidance. Check with a doctor first if you have a heart condition or are pregnant.

How much do Greek thermal springs cost?

From free to about €20. Thermopylae, Therma beach on Kos and the Koniaviti baths were free according to the sources I checked. At Loutra Pozar in 2025 the open pools and waterfall cost €3 and the large outdoor pool €5. Kaiafas charged €9 for the outdoor pool and €11 for the thermal baths. Lake Vouliagmeni cost €17 on weekdays and €19 at weekends in summer 2025. Prices at Edipsos, Loutraki and Samothraki are set locally and I couldn't confirm them.

Can you swim in the thermal springs?

At the spas (Edipsos, Loutraki, Pozar, Kaiafas) you bathe in supervised pools and private tubs. At wild springs such as Therma beach on Kos and the sea-edge pools on Ikaria you soak informally, with no lifeguards. Lake Vouliagmeni is a lake, so you can swim properly.

What conditions are Greek thermal springs used for?

Greek springs are traditionally used for arthritis and rheumatic complaints, skin conditions such as eczema and psoriasis (sulphurous springs like Methana), circulation problems, and kidney and urinary complaints (Loutraki). These are traditional uses rather than medical claims, so ask a doctor about any specific condition.

When is the best time to visit Greek hot springs?

The spa towns and Vouliagmeni are open all year, and winter is when many Greeks use them. Pozar's 37°C water suits cold weather. The wild island springs are best from May to October, and Kaiafas ran only from mid-June to 20 October in 2025.