Explorer of the Seas is one of five Voyager-class cruise ships from Royal Caribbean International. She can accommodate over 3 100 guests including scientists making use of a built-in atmospheric and oceanographic laboratory operated by the University of Miami's Rosenstiel School of Marine and Atmospheric Science. Voyager-class ships are the fourth largest passenger ships in the world after Cunard's RMS Queen Mary 2 Royal Caribbean's own Freedom-class and Oasis-class.
Builders of the MS Explorer of the Seas are Finland, STX Finland Cruise Oy and Turku.