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Eastern Sierra / Long Valley, California

Wild Willy's Hot Springs

Wild Willy's is an undeveloped hot spring on public land in Long Valley, southeast of Mammoth Lakes, reached by a dirt road off Benton Crossing Road. The BLM notes it is very popular, with hundreds of vehicles on busy days.

OpenCheck the official site before you go.Last checked November 2026
Getting there
Dirt road off Benton Crossing Road, then a walk to the pools
Cost and hours
See current prices and hours on the official site
Reservations
Not taken
Managed by
Bureau of Land Management, Bishop Field Office

Good to know. Busy on weekends and holidays; facilities are not maintained, so pack out what you bring.

In any natural hot spring, keep your head above the water. Health officials advise it because of a rare amoeba that can enter through the nose.

Good for: winter trip. Something out of date? Let us know and we’ll check it.

Warm water, closer to home

No hot spring nearby?

Warm-water sessions at your own pool, or your community’s, in and around Flagstaff, by request. And there are small water practices you can do at home, in a bath.

See sessions Practices for home