I went on a tour of Yosemite (included the Great Sequoias). Small group in a van, led by out tour guide Mark. Started at 6am (Early morning taxi), took multiple hours (past windfarms) to get everybody and get to the park. I can't even begin to describe how amazingly big things are (really big). Saw some llamas, and saw several waterfalls. We even saw a bear. I'd suggest you go and look at my SF/WWDC set, starting with this photo, or just hit the yosemite photos.
