Based on the Shivagrha inscription, a community water project to alter the training course of the river close to Shivagrha temple was carried out through the construction on the temple. The river, discovered since the Opak River, now runs north to south on the western facet on the Prambanan temple https://hanumantempleinadelaide.news.blog/2024/09/29/fostering-community-and-culture-at-the-hindu-temple-in-adelaide/