My Son Sanctuary dates from the 4th to the 13th centuries CE. The property is located in the mountainous border Duy Xuyen District of Quang Nam Province, in central Viet Nam. It is situated within an elevated geological basin surrounded by a ring of mountains, which provides the watershed for the sacred Thu Bon river.
The source of the Thu Bon river is here and it flows past the monuments, out of the basin, and through the historic heartland of the Champa Kingdom, draining into the South China Sea at its mouth near the ancient port city of Hoi An. The location gives the sites its strategic significance as it is also easily defensible.