Toba lake is a volcanic lake which length abaout 100 kilometers and has 30 kilometers width. It lays on North Sumatra island in Indonesia. This is the largest lake in Indonesia and also in the south east Asia. In the middle of this lake, there is a volcanic island named Pulau Samosir. The Toba lake has become an object tourism in north Sumatra for a long time
The HistoryApproximately on 73.000-75.000 years ago, there was a big explosion from super active mountain. Bill Rose