The native villages are a tourist attraction.

Samosir

Samosir, or Samosir Island, is a large volcanic island in Lake Toba, located in the north of the island of Sumatra in Indonesia. Administratively, Samosir Island is governed as six of the nine districts within Samosir Regency. The lake and island were formed after the eruption of a supervolcano some 75,000 years ago. The island was originally connected to the surrounding caldera wall by a small isthmus, which was cut through to aid navigation.

• http://en.wikipedia.org/wiki/Samosir
• Hillman 1000 Wonders