Great morinda or noni is native to Southeast Asia but it seems to be popular in the Pacific islands and the Polynesia.
It is green but will turn yellow to almost white when it ripens. If this is the first time you have seen this fruit, it may look strange to you. It looks like an alien with many eyes looking at you 
When ripe, it is soft and mushy with many dark brown seeds. Noni definitely needs acquired taste. It has an unpleasant and pungent odor and tastes like vomit. I have no problem with durians but have a hard time with this funny-looking fruit.
Nevertheless, noni is eaten as a famine food in the Pacific islands. Nowadays, many manufacturers market noni juice, some with sweetened taste, as a health drink as this fruit contains micro-nutrients.