This 7.0 mile roundtrip  hike takes you to swimable pools in the canyon above Pinecrest lake and swimming in the lake on the way there and back.  This loop takes the easterly  side on the way out and the westerly/dam route on the return route.  To shorten it, take the easterly /southerly route in both directions.  735 feet of vertical.  Do no attempt to climb the steep rocks from the base of the falls up.  Instead, take the trail that turns to the right near the base of the falls.

This route is also on the on-line topo.

There is some rock scrambling near the very end that requires holding onto to trees and rocks and climbing vertical for a short bit.