do you really need to
dock? I think you can find
anchor out options. Lauderdale to S
Miami are insane places to hire/buy anything
marine.
Try Matheson Hammock off Biscayne Bay. lat 025°40.484 N; long 080°15.324 W. County park. Nice local & unknown beach. Local to Fairchild gardens & near Key Biscayne. Viscaya is local walk-through museum & good. You might enjoy Parrot Jungle.
Spend a day at Stone Age Antiques on the
Miami R. by road 79 I think.
Marine usable old stuff. You'll wish you had a bigger
boat.
Also, there are places on Key Biscayne facing the sheltered bay.
Hurricane Bay.
I believe there are places you can
anchor along Interstate 95 near Miami Beach.
Dinghy ashore and play on Miami Beach. Look near Star RIvo and Belle Islands. Marina nearby but I don't know the place.