Crowley Lake Everyone knows Crowley. 6000 - 8000 people show up. This lake arguably provides some of the best trout fishing in California. This is a big lake, and a boat is useful. They are available for rent.
Float tubes are common.
Try crawling all the way across the lake in a float tube. That would make a good story. Crowley Lake is just a few miles south of Mammoth on HWY 395. After August 1 thru October 31 it's two fish per day, 18-inches total length, and only artificial lures with barbless hooks can be used. Lake Sabrina Lake Sabrina is located on the middle fork of Bishop Creek, and is surrounded by inspiring, 13,000-foot granite peaks, with glaciers on the rock faces.