Mangaia
Mangaia (traditionally known as A'ua'u Enua, which means "terraced island") is the most southerly of the Cook Islands and the second largest, after Rarotonga. It is a roughly circular island, with an area of 51.8 square kilometres (20.0 mi2), 203 kilometres (126 mi) from Rarotonga. Originally heavily populated, Mangaia's population has dropped by 75% in the last 50 years, mainly due to the decline of the pineapple industry in the 1980s and a subsequent economic crisis in 1996.