Ko Phi Phi Le is a lovely island that covers an area of only 6.6 square kilometres. It is surrounded by limestone mountains and high hills with jutting cliffs. The sea is 20 metres deep and the deepest point in the south of the island is around 34 metres. Ko Phi Phi Le offers superb scenic bays such as Ao Pi Le, Ao Maya, and Ao Lo Sa Ma. In the northeast of the island is a large cave called Tham Viking. The cave was renamed "Tham Phaya Nak" or Serpent Cave by His Majesty King Bhumibol Adulyadej because of a stone resembling the mythical creature, which His Majesty saw when he paid a visit here in 1972.