The annual Monsters Of Rock Cruise is returning for its eleventh year in 2023.On The Blue Cruises has announced the five-day/five-night full-ship music charter will set sail April 29 – May 4 aboard Royal Caribbean’s Mariner of the Seas and depart out of Port Canaveral, Florida. Dubbed They Came From Outer Space, the voyage will include two days at sea full of music (including performances from over 35 artists) and events, as well as visit two ports: Puerto Plata, Dominican Republic and the Private Isle of Labadee.