Toecutter
What would DoG do?
If there's not going to be a set itinerary, I'd like to suggest a side trip to Glacier Point, time permitting. The road up that way is pretty fun and the views from up there are some of the best the park has to offer. Oh, and a refreshment stop at the Ahwahnee Hotel is always nice as well. Of course, valley traffic should be pretty heavy on Saturday so going in that way and finding parking may be a bit of a hassle.