Lake Toba is a lake formed by volcanic activity of the volcano, namely Mount Toba located in North Sumatra Province, Indonesia.The eruption of Mount Toba is estimated to occur about 73,000 to 75,000 years ago.
This lake has a length of 100 kilometers and 30 kilometers wide, so this lake is the largest lake in Indonesia and Southeast Asia, because this is the lake has been famous to foreign countries.Besides this lake is famous for its beauty so that until now many tourists who visit to Lake Toba and to Samosir Island.
