Lake Batur includes active caldera lake types, which are at an altitude of 1,050 meters above sea level (asl). Geographically, Lake Batur is located at position 115o 22’42,3 “- 115o 25’33,0” East Longitude and 8o 13 ‘24,0 “- 8o 17’13,3” South Latitude. Lake water surface area is 16.05 km2, with a water volume of 815.38 million m3 and an average depth of 50.8 m. Lake Batur water is sourced from rainwater and seepage of water from the surrounding mountains with a catchment area of 105.35 km2 (Umber: Bapedalda Province of Bali, 2004).
The length of the shoreline of Lake Batur is approximately 21.4 km which is surrounded by land with two different topography, namely in the west is a low-lying undulating area to the mountain (Mount Batur with an altitude of 1,717 meters above sea level) and in the north, east and the south is a steep hill to the hill (Mount Abang with an elevation of 2,172 meters above sea level). As a water resources system, the waters of Lake Batur contain the potential of biological and non-biological resources that have not been adequately recorded and inventoried in the framework of utilization for the development of agricultural activities and public aquatic fisheries. The development of agriculture and fishing in Lake Batur has a strategic meaning in the context of economic empowerment of communities around the lake, conservation of lake biodiversity and tourism development.