Carnival Horizon is one of the Vista class Carnival ships. The largest in their fleet. She connects guests to the sea with sweeping ocean views at every turn. It features a high altitude sky ride and the world's first IMAX thearew at sea. Carnival Horizon passengers tend to be Younger and families and Mostly American with Europeans in the Med. When all cabins have double occupancy, the ship provides a space ratio of 33.9 tons per passenger and a crew to passenger ratio of one for every 2.7 passengers. At full capacity the space ratio is 33.9 tons per passenger and the crew ratio is one to 2.7 passengers.