North Sumatra Volcanoes

North Sumatra is a province on the Indonesia island of Sumatra, between the Malacca Strait and the Indian Ocean. Its northern, riverside town of Bukit Lawang has a well-known orangutan rehabilitation center. Massive Lake Toba is a volcanic crater lake in the central mountains. Traditional villages and resorts such as Tuktuk lie along the shore and on the vast island of Samosir.