Surrounded by granite domes and lodgepole pine forests, Tenaya Lake is the crown jewel of Yosemite National Park’s high country. Set at 8,150 feet (2.484 m), the silver blue lake is a beautiful sight to behold right after you pass Olmsted Point. Crossing the lake is roughly a mile and wetsuits are recommended because of the temperature. The lake is deep and visibility down to roughly 50 feet. A few tree stumps under water surface, invisible from above. Skirt the edges for maximum safety. No lifeguards on duty. Wetsuit crossing described here: http://frogmom.com/2009/07/across-tenaya-lake-open-water-swimming-at-8150-feet/
