Lake Serene
UnverifiedBeginner (0-30 ft)Intermediate (31-60 ft)47.78190, -121.57030
Confirmed by 0 jumpers
A cirque lake under the north face of Mount Index reached by a stiff hike. The rock shelf at Lunch Rock gives 25 to 35-foot jumps into snowmelt-cold water.
Jumps at this location
Lunch Rock
25 ft
Beginner (0-30 ft)
Upper shelf
35 ft
Intermediate (31-60 ft)
Warnings
Water is barely above freezing early in the season and cold-shock is real after a hot hike. A hiker fell 100 feet from the cliffs above the lake in 2024; stay off the tall walls.
Access
Lake Serene trailhead off Mount Index Road (Northwest Forest Pass). About 4 miles and 2,000 feet up on a stair-heavy trail.
Best conditions
August and September after the snow leaves the shoreline.
Submitted by SmartLeap Field Research