Boundary Lake

Hetch Hetchy

Day 1
12.4mi
+4,100ft / -1,500ft
Day 2
12.3mi
+1,500ft / -4,100ft
Permit

Wilderness permit required for overnight trips.

May through October: apply 169 days before the start date by 11:59 PM PT. Apply today to start as early as October 6, 2021.

Apply for a permit

All trips to Boundary Lake

CurrentBoundary Lake
Hetch Hetchy
12mi/day
+4,100ft/day