Ulun Danu Temple, on the western shore of the lake, dramatic Pura Ulun Danu Bratan projects into the water. This is the temple of the lake goddes who is much revered as a source of fertility. Built by the king of Mengwi in 1633. it consists of four compounds, the two outermost of which are completely surrounded by water.
When the three-tiered Siwaitic lingga petak was recently restored, the builders discovered a bubbling spring and a big white stone flanked by two red ones a phallic lingga representing the reproductive power of Siwa as the god of fertility. Towering above this, on a separate islet, is a single shrine of 11 roofs dedicated to Wisnu in his manifestation as the lake goddess Dewi Danu. who protects all living creatures.