Cruise Review The newest of Voyager class vessels, Royal Caribbean has introduced in December 2002 the Navigator of the Seas. One of four ships that can claim to be "the world's largest", complete with a roller blade track, ice skating rink, and rock climbing wall. Plus a boulevard full of shops, bars and cafes known as the Royal Promenade, and a 1950's style diner: Johnny Rocket's, great for burgers, dogs and...... Similar Editorial : by Colin Hartness. | Source : Carnival Cruise Itinerary