The Tahai Ceremonial Complex was estored in 1974 by the late Dr. William Mulloy, an American archaeologist. Tahai comprises three principal ahu from north to south: Ko Te Riku (with restored eyes), Tahai, and Vai Ure. Visible in the distance from Tahai are two restored ahu at Hanga Kio'e, projects that Mulloy undertook in 1972. Like other Mulloy restoration projects at Ahu Akivi, the ceremonial village of Orongo and Vinapu, the ceremonial center at Tahai now constitutes an integral part of the Rapa Nui National Park, designated by UNESCO as a World Heritage site.
William Mulloy and Emily Ross Mulloy are buried at Tahai.