At age 15, Prinsendam has seen the world. More than once! Designed for upscale worldwide cruising as flagship of the now defunct Royal Viking Line, she was constructed at Wärtsilä Marine's Helsinki shipyard and entered service as the widely acclaimed Royal Viking Sun in December of 1989. At the time, the ship was the epitome of luxury with her huge single seating dining room, lap pool, large standard staterooms with walk-in closets and bath tubs, plus some of the most extravagant balconied suites afloat. In 1994, Royal Viking Line was taken over by Cunard. Once Cunard joined the Carnival family a few years later, a tonnage reshuffle brought Royal Viking Sun to the five-star Seabourn fleet as Seabourn Sun. That career move didn't really work out as the 37,845 ton, 793-guest vessel proved difficult to market amongst Seabourn 200-guest super yachts.