Haranggaol is a charming little town on the shore of Lake Toba. The fascinating beauty of the largest lake in Southeast Asia, located in the district of Simalungun and surrounded by the Bukit Barisan cluster.
The pyroclastic precipitated pyroclastic flow of YTT exposed on the cliff of the road to Haranggaol, this precipitate does not undergo welding. The beauty of Haranggaol has been enthralling since ancient times, this place became an option for the Batak kings to rest and spend free time, green Enchantment as far as the eye of sight plus the water of Lake Toba is so clear, plus the existence of Goa Haranggaol which is also located right on the shores of the lake Toba becomes an alluring attraction. Because of its special, many tourists who call it with the term Grand Canyonnya North Sumatra.