On the Mardi Gras, deck 9 Ocean Suites with a roof are only cabins 9310, 9317, 9410, 9405, 9284, and 9289. If you'll notice on the deck plans, these rooms are on the little corners and have a curved corner on the balcony. These suites are also on decks 10 - 16. Deck 17 has them as Spa Suites. I also recommend viewing Cruise Admiral's youtube video Carnival Mardi Gras Cabin Tour for a primer on choosing a good cabin on Mardi Gras.