Carnival Cruise Line’s Mardi Gras, a cruise ship that debuts in 2020, will feature the first ever rollercoaster at sea.

Bolt: Ultimate Sea Coaster will take riders through almost 800 feet of twists, turns and drops and will get up to nearly 40 miles per hour.

The ride is being built by German firm Maurer Rides and will be all electric. Two riders will sit in a motorcycle-style vehicle and run along a track that will soar 187ft above sea level with 360-degree views.

"Mardi Gras will be our most innovative ship ever with some truly special features and attractions, highlighted by Bolt, the first roller coaster at sea," said Christine Duffy, president of Carnival Cruise Line.

"Bolt will continue the tradition of Carnival providing exciting new ways for our guests to choose fun. We are so thrilled to introduce this one-of-a-kind, game-changing, exhilarating attraction – our guests are going to love it."

Mardi Gras will be based in Port Canaveral, Florida. To mark the 50th anniversary of Carnival Cruise Line’s founding, a second extra-large-class ship will begin construction in 2020 and launch in 2022, of which further details are yet to be announced.