Sure, it’s exciting to be able to order lobster rolls and clam rolls at Carnival Vista’s new Seafood Shack, located on a sundeck at the the aft of the ship. But the best part of this restaurant is a totally new concept: In several ports per sailing, the chefs pick up locally caught seafood, which you can then order by the pound and have sent to any restaurant on the ship to be served to you at dinnertime. Even better, you can request any preparation and sauce you can dream up.