There's no airport so the only way to go is by boat wit very few departures by month without any insurance to get a seat - so impossible for most tourists. Tokelau are islands threatened by global warming.

Tuvalu is one of the countries threatened by global warming.

Pitcairn island is the last UK territory in the Pacific area. A permit is needed and there is no airport. Pitcairn is one of the world's most remote islands.