Luiz,
In those places is it possible to actually have a waterfront home, so you could keep your boat right there on the beach in front of your house? If that is not an option, can you leave your boat on any of those beaches, mast up, and not worry about it being stolen or vandalized? Are there sailing clubs or catamaran fleets in those areas where boats can be left permanently? When you live in a sailing paradise, you want to be able to just put up your sails and go whenever the mood strikes you. I would think that would be one of the ultimate priorities.