Yes there are shuttles both ways, but I highly recommend you use someone else. On our return, we saw 2-3 shuttles come and go before Budget finally showed up. Then we waited in line an hour at the store before we got our car.
There was when we returned our car a few weeks ago. We had to wait but not for very long. The Budget shuttle took us right to the Carnival Sunshine at Port Everglades and also picked us up when the cruise was over and returned us to Budget where we picked up our rental car for the drive home.
There is. Almost all of them you need to schedule and pay in advance.
Yes there are shuttle buses to cruise terminals
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