Thermal baths around Lake Balaton
Thermal baths near Lake Balaton: the spring-fed lake at Hévíz, Galerius on the beach at Siófok and the medicinal baths at Zalakaros, Kehidakustány and Igal. Hévíz Thermal Lake stays above 22 °C in winter and reaches 35 to 38 °C in summer, and the thermal pools at the bathhouses run at 28 to 38 °C. Igal includes its sauna world in every ticket, the others charge extra, and children are kept out of the medicinal pools at Zalakaros, Kehida and Igal and out of the thermal pool at Galerius.
- Baths5
- Water36 to 38°
- Hot rooms80 to 90°
Baths around Lake Balaton compared
Entry, swimwear rules, age limits and ticket type, side by side.
| Bath | Entry | Swimwear and rules | Age | Tickets |
|---|---|---|---|---|
| Galerius BathSiófok |
| The Colosseum sauna world is textile-free, and every sauna infusion in the Relaxium sauna world is textile-free. | none stated | Day ticket |
| Hévíz Thermal LakeHévíz |
| Not known yet. Official site · Know it? Tell us | none stated | Day ticket |
| Igal GyógyfürdőIgal |
| Swimwear only in the pools: swim trunks or swim shorts, bikinis and swimsuits, swim nappies for babies; T-shirts (except swim shirts), long trousers, leggings and sports shorts are not allowed. In the sauna world a swimsuit or sauna sheet is required and nudity is not allowed; organised sauna sessions are taken in a sheet or towel without a swimsuit. | none stated | Day ticket |
| Kehida TermálKehidakustány |
| Saunas are used without clothing, on a sauna sheet handed out with the sauna ticket. | none stated | Day ticket |
| Zalakaros SpaZalakaros |
| Swimwear only in the pools, no other clothing or jewellery. Swimwear may reach no lower than the knee and no higher than the shoulder. Saunas in Sauna World are entered without a swimsuit, on a sheet; the sauna in the adventure bath requires a swimsuit. | none stated | Day ticket |
Every bath around Lake Balaton
Open all year unless the hours say otherwise.
Galerius Bath
Thermal bath, Siófok
Galerius opened on Siófok's main beach in 2006, closed in 2021 and reopened on 1 April 2026 after a rebuild of about 1.8 billion forints.
Hévíz Thermal Lake
Thermal bath, Hévíz · Outdoor lake bathing only; the central bathhouse on the lake has been closed since March 2025
A 4.4-hectare thermal lake fed by a spring 38 m below the surface, which replaces all of its water about every three days.
Igal Gyógyfürdő
Thermal bath, Igal · From October to April seven pools are open; the outdoor summer pools and the giant slide run from May to September. No bathing in the medicinal pools during pregnancy.
Drilling in the 1940s, expected to find oil, struck 81 °C water from 651 metres instead, and the bath opened its first two pools on 20 August 1962.
Kehida Termál
Thermal bath, Kehidakustány · Some outdoor pools are seasonal: on 4 Oct 2026 the wave pool, swimming pool II and the outdoor paddling pool were not running.
The medicinal water rises at 49 °C and cools to 34 to 36 °C in the pools; it is a calcium magnesium hydrogen carbonate water whose sulphide content (3.3 mg/l) puts it among the sulphurous medicinal waters.
Zalakaros Spa
Thermal bath, Zalakaros · Medicinal water is recommended for adults; under 14s use it only on medical instruction.
Zalakaros Spa opened its first indoor building in 1975 and has been officially recognised as a spa by the Ministry of Health since 1978; its medicinal water is an alkali chloride, bicarbonate, iodide and bromide water with hydrogen sulphide.
Nothing here for that filter.
Questions about Lake Balaton
How warm is the thermal water near Lake Balaton in winter?
Above 22 °C in the lake at Hévíz, which reaches 35 to 38 °C in summer. It's fed by a spring 38 m below the surface that replaces all of its water about every three days, and since the central bathhouse on the lake closed in March 2025, bathing there is outdoors in the lake. At Zalakaros the pools run at 28 to 36 °C. Kehida's medicinal pools are kept at 34 to 37 °C and Igal's thermal and medicinal pools at 34 to 38 °C, indoors and out.
Is the sauna included at the Lake Balaton thermal baths?
At Igal, yes: its sauna world comes with every ticket, for guests 14 and over, and a swimsuit or sauna sheet is required there. At Hévíz the Finnish sauna at 80 °C, an infrared sauna and a steam bath are in the Festetics Day Spa, with wellness admission on top of a lake ticket. Zalakaros charges extra for Sauna World, where the saunas are used without a swimsuit, on a sheet, and Kehida charges extra for its Sauna Oasis, from 14 and textile-free, on a sauna sheet handed out with the ticket.
Can children use the thermal baths near Lake Balaton?
Yes, with limits. At Hévíz lake bathing isn't recommended for under-12s and is allowed only with adult supervision, and under-12s may not use the wellness and sauna area. Zalakaros has no minimum age, but under-14s must be with an adult and keep out of the medicinal pools and pools above 35 °C, under-6s can't use the massage pools or whirlpools, and Sauna World is for over-18s only. Kehida keeps its medicinal pools for adults, with the children's ticket covering the adventure and outdoor bath, and Igal keeps under-14s out of the medicinal pools and pools above 35 °C without a prescription.
Is there a thermal bath on the beach at Siófok on Lake Balaton?
Yes, Galerius, on Siófok's main beach, which reopened on 1 April 2026 after a rebuild. Its thermal pool is kept at 34 to 36 °C with sulphurous, iodine-bearing water piped from a source at Nagyberény, and is for ages 14 and over. Both sauna worlds cost extra: Relaxium from 14 and the textile-free Colosseum from 18.