Been there done that. You can't possibly comprehend what your in for. The heat will be unbelievable. Even if you stay on the
boat, if you stay somewhere where the
water runs off of the flats it will be nearly 100 degrees even at night and so will your boat. If you do it I highly reccomend that you try to find places without a lot of flats near deep water. It won't be nearly so hot. The bugs will be even worse than you can believe. In the daytime the horse flies will bite chunks out of you and they think deet is barbacue sauce, so if you're even near land you'll need a
screen enclosure. The
screen enclosure will not help with the nosee-ums unless it's so fine a mesh that it basicly stops all airflow and you roast, but at least the deet will
work. You will need to be inside your tent before sun down. I found that spraying the tent screens with deet helped a lot because deet on the skin is not typically effective all night. Also make sure your tent is big enough so that you don't rest any body
parts against the side. Believe me, light weight tent material will not protect your
tender body
parts from Bahamas mosquitos. I camped in the Bahamas
once 33 years ago. These days things are a bit different. According to the theBahamasGuide.com camping for tourists is prohibited. Of course the Bahamas welcomes people who stay on their boats so you should be ok on the boat. I would think that on uninhabited Islands they wouldn't care too much if you "picniced" on the islands "slept" on the boat. As was said in an earlier post you will need a lot of water. At least with a
power boat you will be able to get somewhere fairly quickly if you need more water.
Good luck!!!