Caracalla Therme Baden-Baden
Thermal BathsBaden-Baden, Baden-Württemberg
Modern thermal baths in Baden-Baden with indoor-outdoor pools and a Roman-style sauna garden, open daily 8am–10pm, day pass €40.
$
Spas with hot tub
6 spas match
Ember Lily Spa
Day SpaJackson Hole, Wyoming
A day spa next to the Trailborn hotel in Jackson Hole with an outdoor pool deck, salt lounge and day passes for walk-in soaks or treatments.
$$$Glen Ivy Hot Springs
Day SpaTemescal Valley, California
Adults-only hot springs resort in Temescal Valley with 19 outdoor mineral pools, red clay baths, and a cave-like grotto, open daily 9:30am-5pm.
$$Houstonian Trellis Spa
Day SpaHouston, Texas
Upscale day spa at The Houstonian in Houston with 22 treatment rooms, soaking pools and a sundeck; pool access comes with a 50-minute-plus treatment, not a
$$$Hawaii Island Retreat
Resort SpaKapaau, Hawaii
An oceanfront eco-boutique hotel and wellness retreat on Hawaii Island's North Kohala coast, open to overnight guests only, not day visitors.
$$$$Sage Hill Inn & Spa
Hotel SpaKyle, Texas
A 88-acre Hill Country resort near Kyle and Wimberley with overnight rooms, a garden spa, pool, hot tubs and day-pass access by reservation.
$$$
