Glen N.
Yelp
There are four hikes.
Hike #1 is the one you're supposed to do. It's a shady paved 1/2 mile trail to the base of the falls. Anyone can do it. Stephen Hawking can do it. On the wettest season (very rare), you will be drenched once you leave your car. On a normal wet month, the water spray will soak the path like rain, or maybe like sprinkling. On dry seasons, it's like Betty White trying to spit.
Hike #2 is the one you're not supposed to do, but stupid people do it anyway. They climb over the fence and past the "Climbing rocks can be dangerous" signs, maybe because it's forbidden, or an actual activity (hike #1 is like walking through the Star Tours line), or a photo op.
Hike #3 is the one I like to do, and not recommended unless you are alert, strong, have good shoes, and don't mind stupid risks that can lead to injury and/or death. You basically go past the kids and start climbing the boulders, wetness permitting. The moss and water make them slippery, and the mountains of sloped trees are so dizzying it's easy to get disoriented if you have bad depth perception. Very foolish, but the dizzying view is incredible and one payoff is a natural water slide into a pool of water (at least there was in 2003).
Hike #4 is the crazy one, and only possible during a dry season. And, trust me, despite the heat, and the lack of water, you need to be prepared and bring a waterproof poncho because you can climb the boulders and actually get to the bottom of the falls. Once it was a very shallow pool, and you could only get near it. Once it was so dry that it turned to mist clouds once it reached the bottom.