The park has unique plant and animal life including endangered species. The Ovate Amber Snail lives only under the rocks found in and around the falls. It is found nowhere else in the world. Also the very rare and environment-sensitive Hart’s Tongue Fern and the succulent Roseroot can be found growing on the gorge walls. Both species are very rare and are found only in damp, rocky environments like the areas immediately surrounding the falls. It’s very important not to remove any plants or animals from this park. It’s critical that you do not cross the barriers at the base of the falls to get closer to it. Since the endangered snails live underneath the rocks, simply stepping on the rocks can crush several of them.