Serenade of the Seas, a Radiance Class ship from Royal Caribbean, is a sleek and especially sunlit ship that offers incredible panoramic views at every turn, via its glass elevators and floor to ceiling windows. This 2,100 passenger vessel sets sail on 4 to 15-night cruises to the Caribbean, Mediterranean, Dubai and the Emirates, and the Suez Canal. On most of Serenade of the Seas’ cruises, casual resort-attire is appropriate, but do pack at least one fancy outfit for a “formal night” that is one of the most anticipated events on board.