Ok, so Ko Phi Phi is the beach on which the movie was actually filmed, but I can imagine a similar sensation of discovery were one to stumble through this boulder-filled crevasse to find Raily West. Just south of the beach is a jagged split through the tall limestone walls, the base of which can only be safely traversed at low tide. However, within and past the crevasse are a series of caves that offer another infinite or two of climbing possibilities.