Lake Toba is the largest freshwater volcanic lake in the world with a size of 100 km x 30 km.
Batak mythology is rich with stories that explain the origins of the world, natural phenomena, and social customs.
Si Raja Batak is believed to be the parent of the Batak clans that exist today.
The different ethnic groups that form the collective Batak people are Simalungun, Karo, Pakpak, Toba, Mandailing, and Angkola.
