Here are some of my favourite cabins, huts and treehouses I have stayed in.
You can rent this cabin in Maya Centre, Belize Link
You can rent these and other cabins at Santa Elena in Yucatan, Mexico, near the Ruta Puuc. Link
You can rent this treehouse or cabins near San Ignacio, Belize. Link
You can rent this great cabin in Belize and watch monkeys from the deck. Link
Lots of birds around this cabin at Crooked Tree, Belize. Link
You can stay in this thatched hut village in a lagoon in the jungle in Cuba. Like most businesses in Cuba, they do not have a website. Look here for my post on this location.