Valla Canyon is a canyon in the Kure Mountains National Park. It is the second-deepest canyon in the world. The depth is 800 meters. The Devrekani Stream, which flows from the Kure Mountains, is 12 km long. Because of the height of the walls, it is a dangerous canyon to visit without a guide and equipment. The observation terrace, on the other hand, captivates visitors with the canyon's amazing landscape.