Worth a Journey

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The World’s 100 Best Saunas & Baths

Sole Uno - Wellness World

Rheinfelden, Switzerland

  1. THE WORLD’S BEST SAUNAS & BATHS WORTH A JOURNEY · 2026 ✦ ✦ N° 58 2026
Sole Uno - Wellness World

Thermal brine spa in Rheinfelden with warm saltwater pools, an outdoor whirlpool pool and a large nude sauna area. A dense brine float pool, chalet-style saunas overlooking a park, and hourly sauna infusions with salt scrubs draw regular visitors.

Highlights

  • Intense brine float pool
  • Chalet saunas in park
  • Hourly sauna infusion sessions

Good to know

  • Towel rental costs CHF 4.50 each
  • Sauna area is nude-only
  • Weekends crowded, book online ahead

Also in Switzerland

  1. Fortyseven Wellness-Therme N° 43 Fortyseven Wellness-Therme Baden Thermal bath
  2. Les Grands Bains d’Hérémence N° 70 Les Grands Bains d’Hérémence Hérémence Hot spring
  3. Hürlimannbad & Spa N° 88 Hürlimannbad & Spa Zurich Thermal bath