7 locations · United States
Colorado
Every clothing-optional place we've verified in Colorado. Tap any entry for full visit notes, etiquette, access and seasonal advice.
Colorado, USA
Boulder Reservoir
Boulder Reservoir is a City of Boulder managed recreational lake with one of the few formally designated clothing-optional beach sections in Colorado — Beach 3, at the eastern end of the reservoir, where nudity is officially permitted by municipal policy. The C/O designation has been in place for decades and is a point of local pride in a city that has long maintained a progressive approach to outdoor recreation and body freedom. The reservoir's beaches are flat, sandy, and sunny, with the Front Range as a backdrop to the west and the Boulder Flatirons visible on clear days. The water warms to comfortable swimming temperature by mid-July and stays swimmable through September. Beach 3 tends to draw an older, relaxed crowd of regular locals and university-connected visitors who treat it as their neighborhood swim spot. The city charges a day-use fee for reservoir access. Parking is available, and the beach is reachable without a long hike — making this one of the most accessible designated C/O freshwater beaches in the Mountain West. Sailboats, kayaks, and stand-up paddleboards share the water with swimmers.
Colorado, USA
Dream Canyon
Dream Canyon is a popular climbing and swimming destination in Boulder County, west of Boulder along the North Boulder Creek drainage, near the town of Nederland. The canyon is named for its dramatic granite formations — the same rock that draws technical climbers to its walls — and the creek below offers cold, clear pools that have attracted informal clothing-optional visitors for as long as Boulder residents have been coming to the area. The C/O tradition is strongest at the more secluded pools upstream from the main access area, where the combination of canyon shade, cool mountain water, and the working assumption that clothing-optional behavior is normal in these contexts has persisted through multiple generations of Boulder outdoor culture. It's not a posted C/O area, but the regulars treat it as one. Summer is the primary season — the creek runs cold from snowmelt through July, then warms slightly through August and September. The canyon sits at roughly 6,500 feet, which keeps temperatures pleasant even in peak summer. Fall colors in the aspens above the canyon make September and October visits particularly scenic.
Colorado, USA
Conundrum Hot Springs
Conundrum Hot Springs sits at 11,200 feet in the Maroon Bells-Snowmass Wilderness near Aspen, Colorado — one of the highest-elevation natural hot springs accessible by trail in the state. This is public land managed by the White River National Forest, not a developed naturist resort. You'll earn your soak: the trailhead starts near Aspen, and it's roughly 8.5 miles one-way with significant elevation gain through aspen groves, conifer forest, and alpine meadow. The payoff is two small soaking pools fed by mineral water that hovers around 100°F, set in a stunning high-country basin with views of jagged peaks. Clothing-optional use is a decades-old tradition here, though the Forest Service doesn't officially designate it as such. You'll find a mix — some visitors strip down, others don't. Weekends in summer (especially July through September) see heavy traffic, and the pools are small enough that 6–8 people fill them comfortably. Crowding is common. This is wilderness. No bathrooms, no trash service, no cell signal. You pack in everything and pack it all out. Camping near the springs requires a permit from the Forest Service, and those fill up fast during peak season. Conundrum isn't part of the organized naturist network — no AANR affiliation, no resort amenities. It's a backcountry pilgrimage for people who want natural hot water, alpine solitude, and the option to be nude in a spectacular setting.
Colorado, USA
Dakota Hot Springs
Dakota Hot Springs is a natural geothermal facility about 5 miles north of Desert Reef Hot Spring in the Arkansas River valley of Fremont County, Colorado. The spring feeds pools at approximately 102°F in an open high-desert setting with mountain views. Like its southern neighbor Desert Reef, Dakota operates as a clothing-optional facility — the two springs together make this part of the Arkansas River valley a destination for Colorado naturists who want a dedicated C/O soaking experience without driving to the mountains. The facility is smaller and simpler than Strawberry Park — it's a local, community-oriented operation rather than a tourism product. This means fewer amenities but a more regular-crowd, relaxed atmosphere. The surrounding Wet Mountain Valley and Fremont County terrain is dry, open, and distinctly Colorado Plateau in character — different from the alpine hot spring experience in the mountains. Both Dakota and Desert Reef are accessible from US 50 east of Canon City, making them practical stops on a drive through central Colorado.
Colorado, USA
Desert Reef Hot Spring
Desert Reef Hot Spring is a private, adults-only, clothing-optional hot spring facility near Penrose, Colorado — in the Arkansas River valley between Pueblo and Canon City. The spring feeds a large, warm outdoor pool (100°F) in a high desert setting, with views of the Wet Mountains and the Colorado Plateau terrain. It's a no-frills, community-oriented facility that has been operating for decades as a regional C/O destination. The Fremont County area is central Colorado's less-touristed zone — Royal Gorge is nearby, but most visitors to Canon City focus on the gorge and don't know the hot spring exists. The crowd is primarily regulars from the Pueblo and Colorado Springs areas, plus travelers making their way along US 50. The membership/day-pass model means it's small and community-oriented rather than a resort. Clothing is optional throughout the facility — it's not an after-hours C/O schedule like Strawberry Park, but the full operating model. The spring is about 40 minutes south of Colorado Springs and 20 minutes east of Canon City.
Colorado, USA
Strawberry Park Natural Hot Springs
Strawberry Park Natural Hot Springs is a commercial natural hot spring 7 miles north of Steamboat Springs, Colorado, in a narrow valley of the Elk River drainage. The springs flow from natural rock sources into a series of stone-and-concrete pools of varying temperatures, surrounded by aspen and conifer forest. After dark (Friday and Saturday nights), the facility is clothing-optional — one of Colorado's best-known C/O hot spring experiences. The setting is particularly striking in winter, when the pools steam in cold mountain air and the surrounding forest is snow-covered. Steamboat Springs is a ski destination, and the combination of skiing and an evening at Strawberry Park makes it a popular itinerary. The evening C/O sessions are popular enough that advance reservation is recommended on winter weekends. Strawberry Park is commercial — admission fee applies, and reservations are recommended. The 7-mile dirt road from Steamboat requires careful driving in winter (4WD or chains may be needed in deep snow). The facility has restrooms and changing areas but no full lodging, though camping is available nearby.
Colorado, USA
Mountain Air Ranch
Mountain Air Ranch sits on 110 acres in the foothills west of Littleton, about 40 minutes from downtown Denver. You'll find yourself at 7,200 feet elevation, surrounded by ponderosa pines and scrub oak, with trails that wind through rocky terrain and open meadows. The property includes a heated pool, hot tub, volleyball and tennis courts, and a clubhouse where members gather for potlucks and game nights. There are RV sites with full hookups, tent camping areas, and a few rustic cabins you can rent. Cell service is spotty up here, which some people appreciate. This is a member-owned club that's been around since 1935, making it one of the oldest naturist venues in North America. Day visits are allowed, but most people you'll meet are regulars who've been coming for years. The atmosphere leans older and family-oriented during summer weekends. Midweek is quieter. The ranch hosts seasonal events like Halloween parties and summer barbecues, but don't expect resort-style programming or staff. People largely entertain themselves. The access road is unpaved and gets rough after heavy rain or snow. A sedan can make it in dry conditions, but high clearance helps. Winters are cold—the pool stays open year-round, but you'll want layers for the walk between the hot tub and wherever you're staying. Summer afternoons bring intense sun and occasional thunderstorms that roll in fast.