Most alternative travel in the Caribbean takes advantage of the region's natural beauty. For example, a trip to Dominica's Morne Trois Pitons National Park allows you to see the tallest mountains in the region where you can hike and stay in eco-lodges.
If you are interested in viewing wildlife, the Caribbean is home to numerous rare species of birds and fish. You can take a scuba tour from many of the islands or visit a place like such as Trinidad's Caroni Swamp where you can see birds like the scarlet ibis.
Eco-lodges are an alternative way to stay in the Caribbean without the glitz of a resort. Many of these lodges include meals as well as opportunities to take classes like yoga or get massages.