Akdamar Island, also known as Aghtamar or Akhtamar, is the second largest of the four islands in Lake Van, in eastern Turkey. About 0.7 kmĀ² in size, it is situated approximately 3 km from the shoreline. At the western end of the island, a hard, grey, limestone cliff rises 80 m above the lake's level. The island declines to the east to a level site where a spring provides ample water.