Based On the Shivagrha inscription, a public h2o project to alter the course of the river around Shivagrha temple was carried out during the construction with the temple. The river, recognized as being the Opak River, now runs north to south on the western aspect of your Prambanan temple compound. https://pressnews24updates.blogspot.com/2024/09/the-hindu-temple-in-south-australia.html