Boulder, Colorado is known as one of the foremost gateway cities to Rocky Mountain National Park, an urban oasis on the edge of one of America’s national treasures. Travelers and locals love this place for the fresh air, mountain sunsets, and a culture of enthusiasm for nature.

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This emphasis on appreciation for the natural is reflected in Boulder’s spa scene—where holistic, eco-friendly wellness experiences are designed to heal and relax. In our Colorado spa guide, we’ve selected the best spas in Boulder that will help you recharge and rejuvenate in-between your adventures and activities.

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Isolate Float & Wellness

643 South Broadway, Boulder, CO 80305; 720-256-6518

Float therapy is a holistic wellness experience—perfect for those in search of privacy, quiet, and sensory bliss. At Isolate Float & Wellness, guests are immersed in a magnesium-rich Epsom-salt solution that relaxes the body and can improve heart health and sleep quality. Enjoy uninterrupted meditation, joint and tension relief, and zero-gravity sensation at this unique wellness space.

In addition to its signature float therapy options, guests at Isolate can indulge in several other wellness-focused activities. Complement a float tank visit with Swedish or deep tissue massage, or a few rounds of sauna and cold plunging. Stimulate cellular repair, enhance circulation, and reduce inflammation with red light and infrared therapy. No matter what service you select, Isolate Float & Wellness promises a full-body experience.

J Lounge Spa

3003 Walnut Street, Boulder, CO 80301; 720-484-6669

J Lounge Spa owner Jennifer Zubrek has always had a passion for natural, organic skincare, especially after noticing how great these facials can be for protecting and healing skin from urban pollution, as well as being wind-chapped from hiking or skiing. That’s why she opened a spa that caters to sensitive skin with specific needs, even creating her own natural skincare line, JLessencials.

These skin-safe products are used in many of J Lounge’s facial services including the Rose Complete Hydration Facial for deep moisturization, the Micodermabrasian Facial for exfoliation and cell renewal, and the Glo Simply Rejuvenating Facial that detoxifies and brightens.

Many services incorporate techniques such as dermaplaning, LED light therapy, and scalp and hand massage to further supplement your facial experience. 

Massage Mountain

6419 Olde Stage Rd, Boulder, CO 80302; 303-324-7102

Just north of Boulder, a visit to Massage Mountain is a quintessential experience as it’s the area’s only open-air massage parlor. Because this is an outdoor experience, the spa’s signature outdoor offering is only open from April to October, though services do continue through the winter indoors.

Their skilled therapists specialize in deep tissue, Swedish, sports massage, and injury recovery—providing a blend of therapeutic and relaxation massages. Complement these services with Reiki energy healing, hot stones or an extensive scalp massage with a lavender hot towel. 

Massages take place in one of four themed rooms: the Bird Garden, Bliss Room, Water Sounds Patio, and Cabin Spa. Each room opens to the outdoors during the warmer months and guests can enjoy listening to birds singing, gentle winds, and the tranquil sounds of rushing waters.

Siam Sensation

5330 Manhattan Circle, Suite G, Boulder, CO 80303; (720)-385-4840

Considered one of the best Thai-style spas in Boulder, Siam Sensation’s therapeutic practices are rooted in Eastern healing traditions. Their offerings include Thai Foot and Hand Reflexology, which stimulate energy points linked to internal organs, and Thai Herbal Therapy using steamed herbal compresses to relieve muscle tension and inflammation.

The spa also features oil-free Traditional Thai Bodywork, Thai Bamboo massage, Tok Sen massage (a hammering technique along energy lines), and Pa Kao Ma stretching for improved flexibility. Each treatment emphasizes restoring balance and relaxation through ancient methods performed by certified Thai therapists.

Need a quicker, targeted treatment? Book an ionic foot bath or sauna session for relaxation and lasting stress-reducing results. 

Spa & Salon at St. Julien

900 Walnut St., Boulder, CO 80302; (720)-406-9696

Mere blocks from Boulder’s bustling Pearl Street, the St. Julien Hotel & Spa offers luxury amenities with boutique charm. The spa caters to guests of the hotel, where access to the steam room, sauna, pool, hot tub, and fitness center are just the tip of the iceberg. In addition to these guest-led wellness amenities, spa staff members provide visitors with world-class massage, facial, and body treatments. 

Indulge in whole-body experiences like a Colorado Bliss Deep Tissue CBD Massage or select a massage offering that addresses a specific area like the scalp, feet or hands to achieve targeted relief. The spa also offers various facials including glycolic peels, dermaplaning, collagen infusions, and vitamin C scrubs that will leave your skin glowing. 

Spavia Day Spa

1810 29th Street, #2004, Boulder, CO 80301; (720)-408-2600

One of Spavia’s goals is to provide guests with a luxury experience that they can build into their regular schedule. Through their signature spa packages and membership plans, Spavia visitors are encouraged to think of their spa therapy as part of a self-care routine, not just a one-time indulgence. With a wide array of massage, facial, and body treatment services, Spavia caters to guests of all ages and skin types to create a wellness plan that works for you. 

Each visit to Spavia’s Boulder location includes a fluffy robe, spa sandals, and a warm aromatherapy neck pillow to set the ambiance and relax you. From there, services can include soothing and hydrating facials, a salt stone massage, and sports massage, each designed to relieve tension, improve circulation, and promote overall well-being.

Specialty treatments such as the Four Hand Massage (where two therapists massage you at once), Sports Massage, and Maternity Massage provide targeted care for unique needs, while enhancements like CBD boosts and Hypervolt therapy enhance results. Many of Spavia’s body treatments are also inspired by practices rooted in the Pacific Islands, like a raw cane sugar scrub or Fijian warm-oil scalp treatments. 

The Dragontree Sanctuary

2405 Broadway, Boulder, CO 80304 ; (303)-219-1444

In Old North Boulder, The Dragontree Sanctuary specializes in harnessing the healing powers of nature and our own bodies to promote peace and healing from within. Founder Brianna Borten is a self-described peace engineer whose interest in massage therapy stems from her own rehabiliation experience after a car accident during her college years. Today, she shares the transformative power of massage therapy—and a positive attitude—with guests at her spa. 

At The Dragontree, spa therapists offer massage options including deep tissue, Swedish, and customized blends aimed at relieving stress and reducing muscle tension. Ayurveda, an ancient Indian healing practice, is integrated through services like Abhyanga (warm oil massage), Shirodhara (a soothing forehead oil flow), and Dosha-balancing treatments. These therapies aim to restore balance, improve circulation, and detoxify the body, creating a deeply rejuvenating experience that nourishes both body and spirit.

Round out your spa visit with a cold plunge, sauna cycle, salt room, steam room or forest shower and be sure to peruse the meditation journals, intention-setting tools, and guided mindfulness courses in the spa boutique to continue your wellness journey at home. 

[Photos courtesy of spas and resorts]

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Katherine Lawless is a Minneapolis-based travel and lifestyle writer who has covered topics ranging from Norway’s Michelin Star restaurants to Minnesota’s top ski areas. She is interested in stories that inspire readers to seek culturally enriching experiences and live a well-rounded life. View her work at: katherinelawless.squarespace.com.