Located in Tahoe National Forest just above the Middle Yuba River, Mushroom Hole takes its name from the shiitake-shaped rock that dominates it. At about 30 feet, it’s one of the northern Sierra’s most popular leaps.

Bonus: If you’re offended by nudity, this is about the only Sierra swimming hole where you can avoid it%u2014you would have to be a fool to go commando off this cliff.

Location: About 80 miles northeast of Sacramento. From Sacramento, take I-80 east for 36 miles to Auburn; head 28 miles north on State Road 49 to Nevada City, then continue north for another 14 miles on State Road 49. Cross the bridge over the Middle Yuba River and take an immediate left on Moonshine Creek Road. Drive a mile and park, making sure not to block any driveways. (There is lots of private property hereabouts, so obey signs.) Look for a trail on the left that will take you down to the river. About a half mile downsteam is an overused hole named Strawberry; continue another 250 yards to Mushroom.

Difficulty: Intermediate Steep downhill climb to the trail, then a half-mile riverside hike to Strawberry and 250-yards to Mushroom. Wear tennis shoes or sturdy sandals for traction and watch for poison oak.