Rawa Pening

Rawa Pening is a shallow natural freshwater lake located in Ambarawa, Semarang Regency, Central Java, Indonesia, between Ambarawa, Bawen, Tuntang and Banyubiru. Covering about 2,670 hectares, it is known for extensive water hyacinth coverage and scenic views of Mount Merbabu, Telomoyo and Ungaran. The lake is notable for the Javanese legend of Baru Klinting, its role in hydroelectric power, irrigation and fisheries, and as a popular boating and sightseeing destination near Semarang.

Visitors can expect a wide, shallow lake covered extensively with water hyacinth (eceng gondok) surrounded by low hills and views of Mount Merbabu, Telomoyo and Ungaran. The area has boat jetties and small fishing villages along the shore. Visitors can take motorized boat rides across the lake, observe traditional fishing activities and floating vegetation, visit lakeside viewpoints and food stalls serving freshwater fish dishes, and photograph the lake landscape and mountain backdrop.

Rawa Pening is linked to the Javanese legend of Baru Klinting, a dragon-like figure whose story explains the formation of the lake from a former village. In the modern era the lake has been utilized for hydroelectric power generation, irrigation and flood control for the surrounding Semarang Regency area.

The lake holds cultural significance in Javanese folklore through the Baru Klinting legend, which is commemorated in local art and performances. It supports traditional fishing communities and is a center for local culinary culture based on freshwater fish, and hosts lakeside cultural events and festivals.