Frog Legs

Begin on the grass behind the Sharkfin. Step deep into the crushing force of the waterfall to find a hidden rock pillar. Ascend the pillar until you reach a standing rest. From that rest climb up the right side of the left-most door until you can traverse left along the top. Traverse out of the water and then ascend a few small roofs. Once you reach the flat wall of vines, head back into the middle of the water to find some perfect holds. Gain a couple feet and then reach with your left foot out of the water onto a ledge. Pull up to it, mantle onto the upper falls and bask in success.