Coconut milk is not the same as coconut water. Coconut milk has a high fat content of around 17%, but is low in sugars. It is frequently added to curries and other savoury dishes. Coconut cream can also be created from the milk.
"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.