Best time to go
Firehole Canyon Swimming Area is Yellowstone’s designated river-swimming access on the Firehole, two miles south of Madison Junction along Firehole Canyon Drive. It’s a natural river stop, so the visit depends on whether the park has opened it: snowmelt and strong currents usually keep it closed until mid-summer, and heavy runoff can shut it for the whole season. Check the park’s swim status before making the detour.


























