There is a river throughout of Bandar Pulau subdistrict in Asahan Regency, which flows 147 km from the edge of Lake Toba. People named it Asahan River. This destination became the best white water rafting spot in the world besides the Zambesi River in Africa and the Colorado River in the US. An endless experience of excitement for river rafting enthusiasts.
The adventure of river rafting starts right in front of Sigura-Gura Dam in Tangga Village and ends at the town of Bandar Pulau as the river’s estuary. It so an outstandingly fast and continuous river with the water debit reaches up to 120 meters per cubic per second.