In accordance with the Shivagrha inscription, a public water undertaking to change the course of the river in close proximity to Shivagrha temple was undertaken during the development from the temple. The river, determined as the Opak River, now runs north to south on the western aspect of your Prambanan https://hindutempleadelaide.tech.blog/2024/09/29/hanuman-mandir-south-australia-a-premier-hindu-temple-in-adelaide/