Pulau Yos Sudarso or Pulau Dolak is an island separated only by the narrow Muli Strait from the main island of New Guinea. It is part of the Merauke Regency, in the Indonesian province of Papua. The island is leaf-shaped, about 165 km (103 mi) long with an area of 11,740 km2 (4,530 sq mi). It was known as Frederik Hendrik Island until 1963. Local and alternative names of the island include Dolok, Kimaam and Kolepom. The island has a pop of 11,000 approx,