The big falls, Jimenoa Uno, is particularly famous. It is pictured in Jurassic Park. In the early scenes when they are arriving in the helicopter, Jimenoa Uno is the one in the background.
It didn't really look like what I remember from the movie. Part of the reason for that, my driver told me, was because the hydroelectric plant was running today. The plant diverts much of the water around the falls to produce electricity. Even still, it was a pretty sight.
The third falls, Baiguate, was on the other side of town. It's the smallest of all, but had more water flowing over it. It was my favorite.