PHOTOS: Unusual Island Vacations

It's getting warmer as summer approaches and we've got a full-blown case of spring fever. We keep catching ourselves dreaming of an island escape and of enjoying some sun, fun and relaxation. Still, going to the Caribbean is so typical -- not that we object to it -- and we're ready to branch out.

We're picturing a different kind of island vacation, a trip to an island, but not simply to the beach or to the inside of a pulpy novel. We're picturing the atypical island vacation, an adventure that allows us some thrills even as we enjoy the perks of an island getaway.

This article originally appeared on HuffPost.