Marathon in the keys has a big liveaboard fleet at anchorage.Depending on your budget A couple of marinas in Marathon charge about $750 for a 42''er with liveaboard priviledges,electric is seperate.You can
anchor out at Bradenton on the West Coast
right across from the marina, in front of the county park.A couple of boats hve been there for at least 6mo.There is a launch ramp and heads aqshore there and no charge to chain up your
dinghy!