 Therefore, the original name of Ngong was "enchoro e'muny", meaning the spring of the rhinos.The Maasai also refer to a spring as the "eye" of water.The Ngong Hills, (known to the Maasai as 'Oloolaiser") from the eastside slopes, overlook the Nairobi National Park game reserve and, off to the north, the city of Nairobi.