My 25th cruise, my 6th with Carnival.
Did a 3 day pre-cruise in the Big Easy at the newer AC Marriot. Great location for the French Quarter, and virtually noise free, even though it is in close proximity to Bourbon Street. (walking distance).
About 10 dollars, (with a tip), for a quick taxi ride to the Port of New Orleans.
Did the typical New Orleans sightseeing. Lots of walking. Ate at Deenies Seafood for authentic dishes done well.