World's Coolest Hot Springs
Courtesy of Calistoga Spa Hot Springs
Calistoga Hot Springs, Calistoga, CA
The Soak: There’s lots more than hot water on tap at this onetime hippie hangout in Napa Valley: Calistoga’s mud baths are as free-flowing as Merlot. Chill-out types will find an array of spas—from frayed-at-the-edges to five-star—offering 80°F–102°F geothermal pools and volcanic ash mud pits where sassy slathering is not verboten.
The Scene: Founded in 1885, Calistoga’s wines are known to loosen inhibitions and lips—as they did when Samuel Brannan christened it “the Calistoga of Sarafornia” (he meant to say the Saratoga of California).
When to Go: Year-round.