Terme Portorož, LifeClass Hotels & Spa
Resort SpaPortorož, Coastal-Karst
Thermal baths and seawater pools in Portorož, open daily 7am–9pm with walk-in day passes and a large sauna park.
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3 spas
Portorož, Coastal-Karst
Thermal baths and seawater pools in Portorož, open daily 7am–9pm with walk-in day passes and a large sauna park.
Brežice, Posavje
Adults-only sauna world at Terme Čatež in Brežice with multiple saunas, a herb garden and warm pools, run on a clothing-optional basis.
Rogaška Slatina, Savinjska
A historic thermal hotel spa in Rogaška Slatina, Slovenia, open only to overnight guests, with a thermal pool and relaxation lounge dating back to 1803.