There is a home in the harbor for rent buy the homeowner, not MLS listed that is pretty nice. It has a pool and is on Davenport Island. Rent is $3750 a month. There is also another waterfront listed by the homeowner for $5000 a month on another island.
If you are renting for the short term, renting one of these might be a good idea. If you are looking for a place to live for more that two or three years, buying might be a better option as a couple of other agents mentioned.
I saw these homes out looking at other houses, and that is how I know about them and not on the MLS.
Most homeowners who rent out houses don't MLS list their homes, and now a few agents aren't listing homes on the MLS. Even though I can't get a commission on these homes, if you post your budget and I see something, I'll post it for you.