Thermal Baths

Taupo, Waikato

Adults-only geothermal pool complex in Taupo with five heated pools and a cold plunge, open daily noon to 9pm, no time limit.

Chaves, Norte

Thermal baths complex in Chaves, Portugal, built around natural hot springs, with hydrotherapy, sauna, steam room and massage on a day-pass basis.

Merano, Trentino-South Tyrol

Central thermal bath complex in Merano with 25 pools, a sauna world, thermal park and medical spa area, open daily year-round with walk-in day passes.

Portorož, Coastal-Karst

Thermal baths and seawater pools in Portorož, open daily 7am–9pm with walk-in day passes and a large sauna park.

Hot Springs, Arkansas

Historic 1924 thermal bathhouse inside the Arlington Hotel in Hot Springs, offering mineral baths, sauna and massage, with walk-ins welcome.

Bath, England

Adults-only thermal spa in central Bath with a naturally warm mineral rooftop pool, open daily 9am–9pm with walk-in day passes.

Eger, Heves

An indoor-outdoor thermal bath complex in Eger with sulfur and radon pools, a kids' pool, slide pool and adult adventure pool, open daily 10am-6pm.

Spa, Liège

Thermal baths in the town of Spa, Belgium, fed by natural mineral water, with saunas, hammams and separate textile and naturist relaxation areas.

Budapest

A large thermal bath complex in Budapest's City Park with indoor and outdoor pools, saunas, and day passes for walk-in visitors.

Berlin

A saltwater thermal pool under a concrete dome near Berlin's Tempelhofer Feld, with sauna, steam room and occasional DJ nights.

Geneva

Public lakefront baths in Geneva offering an outdoor pool, swimming access to the lake, and saunas, with affordable walk-in entry daily.

Sirmione, Lombardy

Thermal baths on Lake Garda in Sirmione with hot tubs and thermal pools, open daily with a day-pass option.

Baden bei Wien, Lower Austria

A thermal bath in Bad Vöslau with four mineral-water pools fed by the original Vöslauer spring, plus sauna and steam room.

Bad Kissingen, Bavaria

A Bavarian state-run thermal bath in Bad Kissingen offering day passes with walk-in access, open most days including evenings.

Băile Felix, Bihor

A thermal baths complex in Băile Felix with outdoor and indoor pools, open daily with walk-in access and no membership required.

Loutraki, Peloponnese

A municipal thermal-water bathhouse in Loutraki, built in 1921 and decorated with 1930s mosaics, open Wednesday to Sunday with walk-ins welcome.

Dead Sea, Balqa

Resort spa on the Dead Sea shore with 40 treatments, thermal pools, sauna and steam, open to day guests aged 16 and up.

Reykjavik, Capital Region

An oceanfront thermal bath in Kópavogur near Reykjavik, open daily with outdoor pools facing the sea and walk-in day passes.

Icheon, Gyeonggi

A moderately priced thermal bath complex in Icheon, Gyeonggi, open for day-pass soaking most days except Tuesday and Wednesday.

Bath, England

A small open-air thermal pool in a separate building from Thermae Bath Spa's main complex, with its own changing rooms and day-pass access.

Poços de Caldas, Minas Gerais

A budget-friendly thermal bath house in downtown Poços de Caldas open for walk-in day passes most days except Monday and Tuesday.

Caldas Novas, Goiás

A budget municipal thermal bath in central Caldas Novas, open weekdays only with a midday break, no weekend hours.

Quito, Pichincha

Family-friendly thermal baths on the slopes of Ilaló outside Quito, open for day visits most days except Monday and Tuesday.

Ranong

A budget thermal-bath spot in Ranong with a soaking pool and an on-site café, open daily 9am to 10pm, walk-ins welcome.