Travelers can once again mark their calendars and set their sights on a summer full of long-awaited cruise vacations. Building on the excitement of its upcoming return to Alaska, Royal Caribbean International has announced that six of its award-winning ships will begin sailing from major U.S. cruise ports in Florida and Texas in July and August. The cruise line’s comeback will kick off on July 2 in Miami, the cruise capital of the world, with Freedom of the Seas* embarking on a special Fourth of