Which cruise ship was the first to include a full-size go-kart racetrack at sea?

Norwegian Joy was the first cruise ship to include a full-size go-kart racetrack at sea.

Norwegian Joy entered service in 2017 for Norwegian Cruise Line. Its two-level electric go-kart track was installed on the upper decks and became one of the ship's signature attractions. The design allowed passengers to race above the ocean while the ship traveled between ports.

The ship was originally built for the Chinese market and later underwent a major refurbishment before entering broader international service. Its entertainment spaces reflected Norwegian Cruise Line's strategy of making onboard activities a central part of the vacation rather than treating the ship only as transportation.

Norwegian Bliss and Norwegian Encore later received similar racetracks, which can make the first ship difficult to identify. Joy remains the ship credited with introducing the feature to the cruise industry, while later ships added their own track designs and enhancements.