The arms race between cruise lines to attract passengers is not letting up as evidenced by  Norwegian Cruise Line's latest gambit.

The 3,850-berth Norwegian Joy (built 2017) will include a go-kart track on the top deck. The track,  which is a partnership with Scuderia Ferrari Watches, features two levels where 10 drivers at a time will be able to race one another in electric go-karts.