Tristan Da Cunha

http://en.wikipedia.org/wiki/Tristan_da_Cunha

A distant group of islands, some of them uninhabited. The small population does not open much to outsiders, but was recently hit by lack of fortunes.

Potential:

A hard place to live, a hard one to pull off. At the very least, it serves for exploring the life of a small community far away from civilization (it is the most remote archipelago in the world).

Note: no mention of climate in the initial resource, needs to be found.

Marks:

Inhabited
Water source