The Khao Khanab Nam Mountains are the most famous landmarks in Krabi, they sit either side of the river and are a real natural wonder. The two mountains sit on top of a large series of caves that have many stalagmites and Stalactites, there are also a large number of human skeletons that could have been from people stranded during a flood. One of the mountains is climbable and offers some excellent photograph opportunities from the top.