Tondano Lake is the largest lake in the province of North Sulawesi, Indonesia. The lake is flanked by Lembean Mountains, Mount Kaweng, Tampusu Hill, and Mount Masarang. The lake is surrounded by roads linking the provincial and city Tondano, District East Tondano, District of Eris, District Kakas, District Remboken, and the District of South Tondano. Tondano Lake is located 600m above sea level surrounded by mountains which have an average height of 700 meters so that its shape resembles a bird’s nest, where many people come for day trips to enjoy the fresh air.

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Lake Toba (Indonesian: Danau Toba) is a lake and supervolcano. The lake is 100 kilometres long and 30 kilometres wide, and 505 metres (1,666 ft) at its deepest point. Located in the middle of the northern part of the Indonesian island of Sumatra with a surface elevation of about 900 metres (2,953 ft), the lake stretches from 2°53′N 98°31′E / 2.88°N 98.52°E / 2.88; 98.52 to 2°21′N 99°06′E / 2.35°N 99.1°E / 2.35; 99.1. It is the largest lake in Indonesia and the largest volcanic lake in the world.^[1]

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