In reply to Mark_spark86:
Have you been to Yosemite before? If not, feel free to ignore or take on board as appropriate
I went to Yosemite last year (on a non-climbing trip). The place is utterly, stupendously, fabulously and ridiculously magnificent. It's just stunning and is full of some of the most amazing views and walks you'll find anywhere. Assuming you've not been before, you might find that climbing a teeny bit of rock might be the last thing you want to do when you actually get there. With one day in the park, I'd recommend getting your tourist had on and try and see as much of it as you can - go for a world class hike, drive around a couple of the viewpoints, or simply stand in the bottom of the valley with your mouth wide open.
I'm sure a bit of climbing would be fun, but if I had only one day in Yosemite I personally wouldn't chose to boulder.
Having said that, if you've already done the sights before, then I hope you enjoy ticking off a few problems