Tamblingan Lake is a lake that located on the north slope of Mount Lesung, Munduk Village, Banjar sub-District, Buleleng, Bali. This lake is one of the three twin lakes that forms in a large caldera. To the eastern part, there is a row of other Lake, which is Buyan lake and Beratan Lake. Flanked by the surrounding forest and the location at the highlands makes the place has cool temperature.