Crowley Hot Spring (Wild Willy's)

Crowley Hot Spring — widely known as Wild Willy's — is one of the most popular free hot springs in California's Owens Valley, located near Crowley Lake south of Mammoth Lakes. The spring flows at around 40°C into a spacious pool ringed by cattails and reeds, with panoramic views of the Eastern Sierra Nevada. A short boardwalk leads from the parking area across the marsh to the pool. The combination of accessible location, great soaking temperature, and dramatic mountain scenery makes this one of California's most visited backcountry hot springs.