Rano Raraku Volcano and Quarry: most of the moai were carved out of volcanic tuff from the inner and outer slopes of the volcano. There are about 400 moai carved to various degrees of completion. Several differences may be observed among them such as, for example, Tukuturi, the kneeling moai. Another moai stands out because of the three-masted sailboat carved on its chest. Towards the west, moai in the process of being moved lie scattered along the so-called 'The path of the moai' (ko te ara o te moai)