Lake Toba in the Province of North Sumatra, Indonesia is the largest lake in Southeast Asia, the largest volcanic lake in the world and the 2nd largest lake in the world in terms of territory after the Victoria lake in Africa. Surrounded by 7 districts namely Kab.Simalungun, Kab.Toba Samosir, North Kab.Tapanuli, Kab.Humbang Hasundutan, Kab.Dairi, Kab.Tanah Karo, and Kab.Samosir; its one of the most popular tourist destinations in Indonesia and famous for the beauty to foreign countries.
The lake and the hills or caldera wall formed by 3 times the eruption of Mount Toba that is 840,000 years old, 500,000 years and 74,000 years ago, created a beautiful panorama and has a historical value of indigenous culture of the Batak tribe high value. That's why UNESCO recognizes Lake Toba as one of the World Geological Heritage (Geopark Caldera Toba).
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