Pura Ulun Danu Beratan – Lake Temple in Bali
Pura Ulun Danu Beratan is a large water temple complex on the shores of Lake Bratan in the mountains near Bedugul. The temple was built in 1633 and used for offerings to the Balinese water, lake and river goddess Dewi Danu. The water temples in Bali are so interesting as they have important functions for the subak (irrigation) systems there. For centuries, the Hindu priests controlled every aspect of the agricultural cycle. Bali has a huge complex network of water channels and terraced rice paddies, and the water temples play a huge part in this system as well. The water temples are either the source of the water, or the water passes through them, and the people perform rituals at the temples.
In total, Bali has about 1,200 water collectives and between 50 and 400 farmers manage the water supply from one source of water. This temple on the Bratan crater lake is considered the original source of all the water on the island.