Ember & Ice Boulder

200 Arapahoe Ave, Boulder, CO

Ember & Ice is a seasonal, outdoor wood-fired sauna and cold plunge experience tucked into Boulder Canyon at the Foot of the Mountain Motel. Sessions run alongside Boulder Creek, with the sauna heated by a wood-burning stove and the plunge tubs filled directly from the creek's snowmelt-cold water. The setup is rustic and intentional — a small wooden barrel sauna, an open-air rinse, and a fire pit for between-cycle warmth. The crowd skews local — Boulder runners, climbers, and trail dogs included — with an emphasis on contrast therapy as an everyday practice rather than a destination spa visit. Sessions are bookable in 90-minute windows on the public schedule, with shared and private formats depending on the day. Bring layers for canyon weather, a water bottle, and an open mind about cold immersion in genuinely cold water. Best fit for someone who wants their thermaculture practice outside, with mountain views and creek sound, in a no-frills format. Less suited to anyone hunting an indoor, climate-controlled spa experience.