Houses on the beach do not have as many mosquitoes or bugs. They do not like salt air as much or breezes. However, there are still some. With ceiling fan, you should not be bothered by them. Personally, after rains, I will use what is called here in Costa Rica "plaquitas" which is a small device that is plugged in the wall and emits an odor that keeps them away.
They are supplied in your room should you desire. There is also organic bug spray sold here which is nice those of us who do not want to use “Deet” products. Mosquito nets are also supplied for your room upon request.