Margaritaville at SeaIslander is a Spirit -class cruise ship operated by Margaritaville at Sea. Previously sailing for Costa Cruises as Costa Atlantica, she was built in 2000 by the Kvaerner Masa-Yards Helsinki New Shipyard in Helsinki and delivered in 2000. Discover the dynamic Mexican duo in reverse, first visiting the untapped beauty of Progreso and finishing with Cozumel. Sample all of Islander's maiden destinations in this three-for-one voyage of discovery along the Gulf of Mexico that includes two days at sea for recovery and revelry. All about Margaritaville at SeaIslander ship, including information about deck plans, cabins, restaurants and more. · When a casino offer popped up that let him sail for next to nothing, he decided to finally try Margaritaville at Sea's newest ship, the Islander, out of Tampa, Florida. After a dozen cruises only on Royal Caribbean in the past few years, it was time for a change. 2 days ago · Margaritaville at Sea is an exciting new cruise line currently featuring two ships, the Islander and the Paradise. The Margaritaville at SeaIslander is the newest flagship resort-at-sea perfectly designed to transport cruisers on a fun-soaked escape to an island state of mind. View Islander ship details, deck plans and more. Get the best deals on Islander cruises from Margaritaville at Sea. · We review the Margaritaville at SeaIslander cruise ship, part of Margaritaville at Sea's fleet of ships.