Patenggang Lake, Mountain lake in Ciwidey, Indonesia.

Patenggang Lake is a mountain lake in Rancabali, West Java, at about 1,600 metres above sea level. Its water covers roughly 46.6 hectares and is bordered by tea plantations and tropical forest. The lake lies on the eastern slope of Mount Patuha and forms the farthest headwater of the Cibuni river system, which drains south to the Indian Ocean.

Situ Patenggang lies on the eastern slope of Mount Patuha, in Rancabali, and forms the farthest headwater of the Cibuni river basin, whose main stream flows south across Java to the Indian Ocean. The lake covers about 46.6 hectares at roughly 1,600 metres above sea level. Its surroundings are managed by the West Java conservation agency as a 63.36-hectare nature tourism park and a 120.71-hectare nature reserve.

The name derives from the Sundanese pateangan-teangan, meaning "to search for one another". In the local legend, Ki Santang, a ruler's son, and Dewi Rengganis, a nature-born princess, were long parted and kept seeking each other until they met at a rock now called Batu Cinta. Dewi Rengganis then asked Ki Santang to make a lake and a boat so they could sail together; the boat became the heart-shaped island Pulau Asmara, also called Pulau Sasaka. Couples who stop at Batu Cinta and circle the island are said to receive lasting love.

The shoreline is easy to access and offers various ways to explore, from walking around the water to taking a boat ride. Wearing sturdy shoes is helpful since the ground can be uneven, especially near the water's edge.

Visitors can boat across to glamping accommodations on the far side, where overnight stays and meals are available surrounded by mountains. This option turns what could be a day trip into an overnight experience in nature.