Yosemite Falls I
The most prominent waterfall in the Yosemite Valley is, no surprise, Yosemite Falls. At nearly 2500 ft in height from the top of the fall to the valley floor, it ranks as the world's 6th tallest (or, according to new discoveries, 7th) waterfall, and the talles one in the U.S. It gushes water during the snowmelt months of spring ~ early summer, but almost dries up later in the summer.
So, needless to say, April was a good time to visit the park to check it out :D
Here is, I think, one of the most picturesque views you can get of the waterfall, from the Swinging Bridge.