posted 07-14-2011 06:11 PM ET (US)
Probably any area in Florida outside of the Keys would cost less to store your boat.You might consider other ways to do this,the storage places you mentioned are indoor or outdoor and located on the water and thus more expensive.However there are storage yards for boats and trailers which are not on the water and cost much less.
Tow your boat down on your trailer and leave it at one of these off water storage locations.
Fly in and rent a SUV,almost all have a 2" receiver hitch.You need a vehicle anyway.This way you are free to travel all 120 miles of the Keys to try different islands.
(though Islamorada is clearly the best)
Our ramps are easy with pay and also free locations.
Marathon is about halfway to Key West and Sun Motors is one location that stores boats on trailers, though there are many more.
Contender has a good idea with placing an ad.We do not have a daily local paper, only weekly, so I would think the price would be reasonable to run for a month.
Craigslist under the Florida Keys heading would be a better choice in my opinion.
Paradise ain't cheap. Have a hurricane plan for your boat and theft insurance.
Good luck
Chuck