<strong>Latest cruise ship extras:</strong> Anybody can do pools and kids' clubs. But these 10 recreational extras, such as this personal submarine from Crystal Esprit, are bringing the at-sea experience up a notch. Click through the gallery for more wild offerings:
Latest cruise ship extras: Anybody can do pools and kids' clubs. But these 10 recreational extras, such as this personal submarine from Crystal Esprit, are bringing the at-sea experience up a notch. Click through the gallery for more wild offerings:
Courtesy Ian Schemper/Crystal Cruises
<strong>Robot bartenders:</strong> Robo-bartenders helm the bar at the "mixology meets technology" Bionic Bar, found aboard select Royal Caribbean ships.
Robot bartenders: Robo-bartenders helm the bar at the "mixology meets technology" Bionic Bar, found aboard select Royal Caribbean ships.
Courtesy Roy Riley/Royal Caribbean International
<strong>Racetrack:</strong> Satisfy your need for speed on Norwegian's new Norwegian Bliss, equipped with the largest racetrack at sea.
Racetrack: Satisfy your need for speed on Norwegian's new Norwegian Bliss, equipped with the largest racetrack at sea.
Courtesy Norwegian Cruise Line
<strong>Snow Grotto:</strong> Chill out in Viking's "Snow Grotto," part of their ocean-sailing ships' spa complexes. Such cold therapy following a sauna or steam is inspired by Nordic wellness traditions.
Snow Grotto: Chill out in Viking's "Snow Grotto," part of their ocean-sailing ships' spa complexes. Such cold therapy following a sauna or steam is inspired by Nordic wellness traditions.
Courtesy Viking Cruises
<strong>Underwater lounge:</strong> The first of Ponant's six planned Blue Eye underwater lounges -- as depicted in this rendering -- debuted aboard its Le Laperouse ship in June 2018.
Underwater lounge: The first of Ponant's six planned Blue Eye underwater lounges -- as depicted in this rendering -- debuted aboard its Le Laperouse ship in June 2018.
Courtesy Compagnie du Ponant
<strong>Sky bike:</strong> Put your pedal power to the test 150 feet above sea level on Carnival's SkyRide attraction, a fun feature aboard its two newest ships: the Carnival Vista and Carnival Horizon.
Sky bike: Put your pedal power to the test 150 feet above sea level on Carnival's SkyRide attraction, a fun feature aboard its two newest ships: the Carnival Vista and Carnival Horizon.
Courtesy Andy Newman/Carnival Cruise Line
<strong>Skydiving simulator: </strong>Royal Caribbean stands out for its adventure-minded innovations such as the RipCord by iFLY attraction, a skydiving simulator that's available on its Quantum-class ships.
Skydiving simulator: Royal Caribbean stands out for its adventure-minded innovations such as the RipCord by iFLY attraction, a skydiving simulator that's available on its Quantum-class ships.
Roy Riley/Royal Caribbean International
<strong>Ice Bar:</strong> Norwegian Cruise Line serves up frosty cocktails and an icy winter scene at its Skyy Vodka Ice Bar, found aboard the Norwegian Breakaway, Norwegian Getaway and Norwegian Epic.
Ice Bar: Norwegian Cruise Line serves up frosty cocktails and an icy winter scene at its Skyy Vodka Ice Bar, found aboard the Norwegian Breakaway, Norwegian Getaway and Norwegian Epic.
Courtesy Susan Seubert/Norwegian Cruise Line
<strong>Planetarium:</strong> Cunard Line's Queen Mary 2 comes equipped with the only full-sized planetarium at sea -- time your voyage right, and you might even find yourself sharing the view with a former astronaut.
Planetarium: Cunard Line's Queen Mary 2 comes equipped with the only full-sized planetarium at sea -- time your voyage right, and you might even find yourself sharing the view with a former astronaut.
Courtesy Cunard Line
<strong>Seawalk:</strong> Walk on water via Princess Cruises' SeaWalk feature (available on the Regal Princess, Royal Princess, and Majestic Princess), a glass-bottomed pathway that cantilevers the ships' side by 28 feet and overlooks the ocean waves some 130 feet below.
Seawalk: Walk on water via Princess Cruises' SeaWalk feature (available on the Regal Princess, Royal Princess, and Majestic Princess), a glass-bottomed pathway that cantilevers the ships' side by 28 feet and overlooks the ocean waves some 130 feet below.
Courtesy Mark Katzmann/Princess Cruises