The light-colored area below the summit of flat-topped Gunung Merapi, the highest peak of Ijen volcano, is the crater rim of Kawah Ijen, the renowned sulfur-bearing lake. Gunung Merapi, seen here from within the caldera, was constructed over the eastern rim of the 20-km-wide Ijen caldera.

Copyrighted photo by Katia and Maurice Krafft, 1971.

Copyrighted image used with permission. All Rights Reserved. Contact photographer for any usage requests.

Ijen