Colorado Athletic Club in Boulder with gym, pool, tennis, and sauna.

Boulder luxury day spa with hydrotherapy, steam, sauna, and relaxation veranda.

Serene Boulder day spa with tea service, massage, facials, and infrared sauna.

Fitness gym with sauna (Boulder CO).

Boulder YMCA with aquatics, gym, and sauna access.

Boulder community recreation center with pool, gym, and sauna.

Float and wellness center with sauna services

Boulder natural health clinic offering holistic therapies and sauna.

Large gym with sauna and HIIT zones on Westheimer Rd.

Luxury hotel spa in downtown Boulder with steam/sauna, pool, and high-touch body rituals.