Mu Ko Lanta National Park (Thai: อุทยานแห่งชาติหมู่เกาะลันตา) is a national park in the southern part of Krabi Province, Thailand, consisting of several islands. The two largest islands are Ko Lanta Noi and Ko Lanta Yai. Although both are inhabited, Ko Lanta Yai is the primary tourist destination. The park was established in 1990 and altogether covers 134 km (52 sq mi).