First Ever Roller Coaster At Sea with Carnival Cruise Line - Mardi Gras in 2020 Carnival Cruise line has just released some thriller news. Get ready to ride! In another cruise industry first, Carnival Cruise Line’s Mardi Gras™ will feature the first-ever roller coaster at sea when it debuts in 2020, providing an unforgettable and unique open-air thrill ride on the line’s newest and most innovative ship. Built by Munich-based Maurer Rides, BOLT™: Ultimate Sea Coaster™ is a heart-pounding rush ...
