Theth National Park is a national park in extreme northern Albania declared by government decree in 1966. It covers an area of 2,630 hectares and is located along the Theth River. The main attractions in the park are the Grunas Waterfall and the Lock-in Tower. Visiting Theth in the early 20th century, the traveller Edith Durham said: I think no place where human beings live has given me such an impression of majestic isolation from all the world.