Tenaya Lake is on the road to Tuolumne Meadows.  When Josh was 2 or 3, he swam here.  The water is pretty cold!  We started a series of pictures of him facing away at different places in Yosemite.  I might include them somewhere on the website.  In any case, this is a beautiful lake and I recommend you see it.   I think it's about an hour from Yosemite Valley along the Tioga Road.