Terraced rice fields in Bali | Indonesia

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Subak is the water management (irrigation) system for paddy fields on Bali island, Indonesia which was developed in the 9th century. 

Cultural Landscape of Bali Province: the Subak System as a Manifestation of the Tri Hita Karana Philosophy is a Unesco World Heritage site.

The water managements is under the authority of the priests in water temples, who practice Tri Hita Karana Philosophy, a self-described relationship between humans, the earth and the gods.