Reshared post from +Thomas B
Spent two days in Yosemite for the Thanksgiving holiday. Attended a 90 minute photo walk with Kirk Keeler, one of the staff photographers at the Ansel Adams Gallery. Our group of 10 or so photographers had everything from kids with point-and-shoot cameras to guys with pro-grade DSLRs with 100-400mm lens. Kirk did a nice job of using Ansel's photos to discus lighting and composition as we walked around Cook's Meadow and Sentinal Bridge.
If you're visiting Yosemite, check the activities guide (I think they call it a "camera walk.") Good chance that many of the tips will be review, but always nice to get some tips on different locations and best times to shoot.