Danau Ranau

Danau Ranau is a large natural freshwater lake straddling West Lampung Regency in Lampung and Ogan Komering Ulu Selatan in South Sumatra, Indonesia. Located in Lumbok Seminung District at about 540 meters above sea level, it is the second-largest lake in Sumatra after Lake Toba. Formed by volcanic activity associated with Mount Seminung, the lake covers approximately 126 square kilometers and is known for its scenic mountain backdrop, clear water, and nearby hot springs.

Visitors can expect a vast caldera lake surrounded by hills and Mount Seminung, with calm clear water, lakeside villages, and fishing boats. The area offers open shoreline viewpoints, photo spots, boat rides on the lake, lakeside food stalls, and natural hot springs near the shore where visitors can bathe. The environment is rural and tranquil, with agricultural land and forested slopes around the lake.

Danau Ranau was formed by a major volcanic eruption that created a large caldera, later filled with water. The lake is geologically linked to Mount Seminung, an active volcano on its southern edge, and has long been a settlement and fishing area for surrounding communities.

The lake is central to the livelihood and traditions of local communities in Lumbok Seminung and surrounding villages, who depend on fishing and agriculture. It is a well-known recreational destination for residents of Lampung and South Sumatra and features in local folklore related to Mount Seminung.