Not sure what you are referring to here. I know of no restrictions or
fees to cross the border into FL. No cruising permits are required for US residents and there are no time limits to staying in the state.
They, like most other coastal states, consider you a resident and require that you register your
boat in FL if you stay there more than 90 days. This, in my mind, is no different than all states that require you to get a local drivers
license and state tag for your car, in some cases if you stay even 30 days.