Lake Toba (Indonesian: Danau
Toba) is a lake and supervolcano. The lake is 100 kilometres long, 30
kilometres wide, and up to 505 meters (1,666 ft) deep. Located in the
middle of the northern part of the Indonesian island of Sumatra with a surface
elevation of about 900 metres (2,953 ft), the lake stretches from2.88°N
98.52°E to 2.35°N 99.1°E. It is the largest lake in Indonesia and the
largest volcanic lake in the world. (wikipedia.org)
Location : North Sumatra, Indonesia