Lake Donuzlav (Russian and Ukrainian: Донузлав, Crimean Tatar: Doñuzlav), also referred to as Donuzlav Bay, is the deepest lake of Crimea (27 m, 89 ft) and biggest in Chornomorske Raion (47 km, 18 sq mi). It is a protected landscape and recreational park of the Autonomous Republic of Crimea.
