Operator: Royal Caribbean Int Capacity (double occupancy): 3,114 Full Capacity: 3,840 Space Ratio: 44.1 / 35.8 Gross Tonnage: 137,308 gt Length: 1,021 ft. / 311 m Marginally larger than her sister ships and thus the largest passenger liner ever built until the QM2 and the new Freedom class Royal Caribbean ships, this 137,308 gt giant is truly a floating city. Rock climbing, ice skating, minigolf and inline skating; all this - and much more - is featured aboard this spectacular megaliner. Explorer of the Seas now sails to the Eastern and Western Caribbean from Miami, year-round.