This word is a Spanish translation of cabin or hut. It originally referred to a small, lightweight living structure that was frequently set up on the beach, typically with one side open to the ocean. Nowadays, when you build a cabana near your pool, its typically more of a relaxing/party area than a living structure. Ideally, your cabana would include a bar that looks out to the pool area, perhaps a table with chairs or a couch, plus a sink, a refrigerator, etc. More or less, a cabana could be considered a small cozy combination of an outdoor kitchen and outdoor living area, designed with a little bit more of a bar theme overall.