Koniaviti Thermal Springs (Mylos Koniaviti)

What to expect

Koniaviti (also spelled Kouniaviti, and signed locally as Mylos Koniaviti, “Koniaviti’s mill”) is the free, open-air end of the Kamena Vourla spa scene. While the big hotel spa in town charges for its thermal pools, here the spring water simply fills a row of concrete pools beside the coast road on the western edge of town, and anyone can get in.

There are several pools rather than one. The largest is roughly 15 by 5 m (50 by 16 ft), according to a 2022 visitor report, with smaller basins stepped beside it on OpenStreetMap. The water is sulphurous and weakly radioactive (it carries radon, like the rest of the springs along this stretch of the Knimida foothills), and the smell takes a few minutes to stop noticing. The regional spa guide gives the Koniaviti spring as hydrogen sulphide and sodium chloride water at 90°F32°C. Greek travel writers put the free pools at 90-95°F32-35°C all year.

That temperature matters for expectations. This is a long, warm soak, not a hot one. On a cold January morning it feels great. In August, when the air is 95°F35°C, the pools are closer to a tepid swimming hole.

The crowd is mostly local. For decades older Greeks came to Kamena Vourla for arthritis treatment and spent their winter mornings in these public pools, and the habit has not died out. You are unlikely to meet many foreign tourists.

Getting there

Kamena Vourla is on the Malian Gulf in Fthiotida, Central Greece, about 177 km (110 miles) from Athens and 33 km (21 miles) from Lamia. The A1 Athens-Thessaloniki motorway (PATHE) runs along the coast right past the town.

• From Kamena Vourla town: Head west toward Lamia and Thermopylae. At the edge of town, take the narrow side road that runs parallel to the motorway. Koniaviti is signposted from the town exit. The pools are about 2.5 km (1.6 miles) west of the Galini hotel as the crow flies.
• From Athens: Drive north on the A1 and take the Kamena Vourla exit, then follow the old road through town and out the western side.
• From Lamia: Come east along the A1 or the old coast road and look for the signs to the springs just before you reach Kamena Vourla.

There is a fair-sized parking area next to the pools. You can see the water from the car, so there is no walk to speak of.

The springs are on the same strip of state-owned coast as the older EOT campsite, which has been closed for years. Do not try to drive into the old campsite grounds.

When to go

Koniaviti is open all year and no operator publishes fixed hours. Daylight visits are the sensible choice, since the pools are unlit.

• October to May is the best season. The warm water stands out against cool air, and the pools are quieter on weekdays.
• Summer brings beach traffic to Kamena Vourla and more people in the pools, but the water feels flat when the air is just as hot. Combine it with a swim in the sea instead.
• Weekends are busiest year-round, especially Sunday mornings.

Kamena Vourla sits in one of the more seismically active parts of the Mediterranean. Spring flows can change after earthquakes, so if a quake has hit the area recently, check local news before you go.

Rules and etiquette

There is no staff on site, so the rules are the unwritten ones locals follow.

• Swimsuits. This is a public pool beside a road, used by families and older visitors. Wear a swimsuit.
• No soap or shampoo in the pools. Shower before you arrive or rinse with bottled water at the edge.
• Respect the site. A 2018 newspaper report noted that the pools had been rebuilt and the surroundings cleared of rubbish, and asked visitors to keep it that way. Take your litter home.
• Share the space. The bigger pool fills up on weekend mornings. Move along after a reasonable soak.
• Short sessions. Even at 90-95°F32-35°C, long sessions in mineral water tire some people out. Break a long soak into shorter dips with rests in between.

Ownership and what may change

The Koniaviti land, with the abandoned EOT campsite and a long stretch of seafront, belonged to the Greek state and was put up for sale by the Hellenic Republic Asset Development Fund (TAIPED). In 2024 Inmo Parck Invest S.A. won the tender for €11 million. A presidential decree approving the site’s development plan was published in February 2026. The plan sets aside protected zones around the two springs, Mylos Koniaviti (37 stremmata) and Kallyntika (35 stremmata), where only light structures are allowed. Public reports so far do not say what will happen to free access to the outdoor pools once building starts. For now nothing indicates they have closed, but look for new signs or fences.

Where to stay nearby

There is no lodging at the pools.

• Kamena Vourla has many hotels and rooms to let, a few minutes’ drive east. The largest is the five-star Mitsis Galini Wellness Spa and Resort, which has its own thermal pools; see Kamena Vourla Thermal Springs.
• Agios Konstantinos, a little farther east along the coast, has more rooms and is the port for boat trips to the Lichadonisia islets.
• Lamia, 33 km (21 miles) west, is the nearest city with full services.

Safety notes

• Smell and sulphur: The water and air smell of hydrogen sulphide. In open-air pools this is a nuisance rather than a hazard, but get out if you feel lightheaded.
• Radon: The Kamena Vourla springs are known for their radon content. Brief, occasional soaks are the norm; pregnant visitors and people with medical conditions should ask a doctor first.
• No lifeguard: Nobody supervises the pools. Watch children closely, and do not dive into the shallow basins.
• Slippery edges: Mineral deposits make the pool rims slick. Bring sandals.
• Car break-ins: The parking area is beside a highway and empty at night. Do not leave bags on display.
• Head above water: As with any untreated spring pool, keep your head out of the water.

Nearby stops worth adding

The Kallyntika springs are about 500 m (0.3 miles) farther west along the same side road. Their pools are smaller and less used, and most visitors look in on both. See Kallyntika Springs.

Farther west toward Lamia are the free hot springs at Thermopylae, beside the battlefield monument, and inland beyond Lamia is the old spa village of Loutra Ypatis. Both make easy half-day add-ons.