Massive megaships – like Royal Caribbean's brand-new Star of the Seas and Carnival Celebration – offer incredible water parks that rival those on land, while smaller ships like Viking Vesta offer picturesque infinity pools overlooking the ship's wake.

Royal Caribbean makes popular cruise ship pool adults only originally appeared on TravelHost. Although Royal Caribbean is a family cruise line that has long designed its ships for family vacations, its newest cruise ships have broad appeal and are attracting more young adults than ever.

A Caribbean cruise passenger accidentally fell over the edge of an infinity pool while dangerously reaching over to pick up his sunglasses, and the shocking incident was caught on camera