Lake Toba is a volcanic lake with a length of 100 kilometers and 30 kilometers wide, located in North Sumatra province, Indonesia. This lake is the largest lake in Indonesia and Southeast Asia. In the middle of this lake there is a volcanic island called Samosir Island.
Lake Toba has long been an important tourist destination in addition to Bukit Lawang, North Sumatra and Nias, attracting domestic and foreign tourists.