According to the Shivagrha inscription, a community water task to alter the training course of a river close to Shivagrha temple was undertaken during the construction from the temple. The river, identified given that the Opak River, now runs north to south about the western side with the Prambanan temple https://hanumanjimandir.game.blog/2024/09/29/discovering-spiritual-sanctuaries-hanuman-ji-mandir-in-adelaide/