Royal boat at Huta Bolon Museum in Simanindo village on Samosir Island, Lake Toba, North Sumatra, Indonesia

Batak tugu (Bone houses) at Huta Bolon Museum in Simanindo village on Samosir Island, Lake Toba, North Sumatra, Indonesia

Motorcycle laden with prawn crackers on board the car ferry between Parapat and Samosir Island, Lake Toba, North Sumatra, Indonesia

Fish farms on Lake Toba, as seen from Siuhan, North Sumatra, Indonesia

Fish farms on Lake Toba, as seen from Siuhan, North Sumatra, Indonesia

Toba Batak woman in traditional costume at Huta Bolon Museum in Simanindo village on Samosir Island, Lake Toba, North Sumatra, Indonesia

Flute player of a Margondang orchestra at Huta Bolon Museum in Simanindo village on Samosir Island, Lake Toba, North Sumatra, Indonesia

Cottages of Hotel Danau Toba by Lake Toba, Parapat, Lake Toba, North Sumatra, Indonesia

Banyan tree and traditional boat-shaped Toba Batak houses (jabu) in Ambarita village on Samosir Island, Lake Toba, North Sumatra, Indonesia

Toba Batak people performing a traditional Batak dance at Huta Bolon Museum in Simanindo village on Samosir Island, Lake Toba, North Sumatra, Indonesia

Toba Batak woman performing a traditional Batak dance at Huta Bolon Museum in Simanindo village on Samosir Island, Lake Toba, North Sumatra, Indonesia

Toba Batak people performing a traditional Batak dance at Huta Bolon Museum in Simanindo village on Samosir Island, Lake Toba, North Sumatra, Indonesia

Man fishing in Lake Toba, Samosir Island, Lake Toba, North Sumatra, Indonesia