Serenity Deck (age 21 and over and no additional cost) on the Mardi Gras is huuuge- and it has 2 hot tubs, and a cold plunge pool. It also has this fabulous salad bar that's open 12-2 on sea days🥗 Good decisions made easy ..here on Mardi Gras I tell ya!🙌🏼✌️Carnival Cruise Line Follow along for all things cruising and so much more of this amazing vessel 🛳️. Carnival Mardi Gras Carnival Mardi Gras#transatlantic #cruiselife | The Inspired Nurse