For generations, Sonoma's natural hot springs have been held as a sacred place for healing. (They even contributed to the war effort during WWII—the Navy would send sailors there for much-needed R&R.) Since then, the Sonoma Valley has become a prime vacation destination, and the Spanish-style Fairmont Sonoma Mission Inn & Spa has adapted those hot springs into a much-needed retreat for visitors from around the world—especially at the Willow Stream Spa, a 40,000-square-foot complex that recently went through a $2 million renovation, featuring a fitness studio, a salon, and pools. Take a look at the features that have allowed this spa to endure:

The Bathhouse

During the signature Bathing Ritual, visitors soak in two warm mineral pools filled with water flowing from a thermal spring 1,100 feet below ground. The experience also includes an exfoliating shower, an herbal steam room, a dry sauna, and rain tunnel experience.

Three Tiers of Services

Every treatment is sorted into one of three categories to help clients decide what to enjoy during their spa visit.

• Relieve treatments facilitate relaxation and rejuvenation. Try the Barefoot Shiatsu massage, in which the therapist uses their feet and body weight to provide firm therapeutic pressure that releases knots.
• Restore services are meant to help clients recover from travel, hectic schedules, or an afternoon spent tangled in the Sonoma Valley vines. During the Executive Meltdown, hot stones and warm towels force tension out of the body. It also includes a massage of the scalp, upper body, hands, and feet.
• Results treatments include intense, state-of-the-art therapies for cleansing or anti-aging. The Advanced Custom cleanse, for instance, targets fine lines and hyperpigmentation.