Indian Hot Springs Geothermal Caves

Rock caves bored into the mountainside in the early 1900s form pitch-dark, steam-filled grottos where you soak in 108-120F geothermal mineral pools with near-100% humidity dripping off the stone walls — separate caves for men and women, open year-round. The facility is a fully operating historic resort 30 minutes west of Denver with hotel rooms, private baths, an indoor tropical pool, and a BBQ restaurant on-site.

The move: Arrive on a weekday morning when the caves are least crowded ($35/person), split up for an hour in the men's and women's geothermal caves, then reunite for a soak in one of the outdoor private mineral tubs before grabbing lunch at the on-site Big Kahuna BBQ — the whole visit runs 2-3 hours and doubles well with a stroll through historic downtown Idaho Springs afterward.

• 📍 Idaho Springs
• 💸 $$
• ⚡ Low-key
• 🌗 Indoor or outdoor

Where: 302 Soda Creek Rd, Idaho Springs, CO 80452

Hours: Mined 2026-06-07 — confirm current hours before you go.

Plan a visit & invite your people →

Proof: source 1 · source 2 · source 3

Verified 2026-06-07.