I love everything about being outdoors, especially around water. I like hiking, but I don't get too extreme. Viewpoints that are hidden/will make me never want to leave would be loved.
...and then be wowed by Vernal Falls .
And then of course, you have to wander through the Mariposa Grove of Giant Sequoias to personally witness the majesty of our planet's tallest living thing...
And although Yosemite's biggest selling points is that this unadulterated experience of nature is it's primary form of entertainment, The Valley does offer one other classic presentation not to be missed: Lee Stetson as John Muir. To find out the schedule, click on the following link: http://www.johnmuirlive.com/tour.html.
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Hey Hayden - I'd recommend floating down the Merced River. Only problem might be the time of year...it tends to dry up towards mid July. (Not really dry up totally but slows down). I went 3 weeks ago and it was perfect!