Can't help you with Miami...I'm sure someone can but we did this in Fort Lauderdale to the Everglades before our flight and it was wonderful. In fact this was in 2001 and just last night DH, brother, sister in law and I were reminising about our experience. It was very convenient and we arrived at the airport with plenty of time for check in. A nice way to end a cruise. ENJOY!!
Teresa and Larry
#36-Carnival Splendor 9/16/12
7 night Mexican Riviera
#37-Allure of the Seas 11/11/12
7 night Eastern Caribbean
Deb, we did this in Feb. on Valor. We tried to book it in advance without success. Went to the shore excursion desk and booked it there. You can probably do it via the T.V. in your room but we didn't try it.
Aegean I Sept /01 Athens
Carnival Valor Jan /05 Miami
Carnival Valor Jan/06 Miami
Carnival Pride Jan/07 Long Beach
Splendour of the Seas Sept/09 Venice
Adventure of the Seas Jan/11 San Juan
Adventure of the Seas Feb/12 San Juan
Navigator of the Seas Jan/13 N'arlins