I'm very glad to hear this.
Questions: did you ASK anyone at Carnival Cruises for permission, or let them know in advance? Or did you just bring it on board without saying anything and hope for the best? Did anyone at Carnival say anything when you were initially boarding the ship, or re-boarding after being at port? Did anyone SEE the mavic while you were boarding, or did you slip it on unnoticed?
I'm curious because I regularly cruise to the Bahamas and the Caribbean, but I've yet to try to take a cruise with the mavic, and I've heard some cruise lines absolutely prohibit them on the ship and will confiscate it if they see it.
In any case, I'm glad to hear that you were able to cruise with the mavic without issues.
Also, did you run into any No Fly Zones anywhere in the Bahamas?