Orongo is a stone settlement and seasonal ceremonial centre, built by the indigenous Rapa Nui people on the edge of the Rano Kau Volcano caldera, located on the southwestern tip of Easter Island.
he ancient people of Rapa Nui (Easter Island, Chile) built their famous ahu monuments near coastal freshwater sources, according to a team of researchers including faculty at Binghamton University, State University of New York.