White Sulphur Springs Retreat Site

Insider tip — White Sulphur Springs in Calistoga sits in a forested canyon at the foot of the Mayacamas Mountains, operating since 1852 as California's oldest continuously running resort and thermal retreat. The sulfurous springs emerge from volcanic geology shared with the Geysers field to the north, and the classic mud bath and sulfur soak combination has been a staple here for over 150 years. The creekside setting with redwood canopy provides rare shade in the otherwise sun-baked Napa Valley, making it a cool respite in summer. Pair the sulfur soaks with a visit to the attached olive grove and the historic stone bathhouse building for a full experience of 19th-century California spa culture.