The 25th ship in Royal Caribbean’s fleet, Symphony of the Seas is 228,081 gross registered tons, measures 238 feet tall and spans 1,188 feet long. She will welcome 5,518 guests at double occupancy in 2,759 staterooms, including 28 additional balcony rooms that overlook the ocean or signature Boardwalk neighbourhood Checkout the world's largest cruise ship to be launched in 2018- "Symphony of the Seas". This ship will transform the luxury cruising experience and can accommodate more passenger than today's biggest cruise ship.