Carnival Horizon: 7 nights from Galveston

Carnival Horizon sails this route on 21 dates between April 2028 and April 2029. A 7-night round trip from Galveston, sailing in the afternoon. After two days at sea it calls at Montego Bay, Grand Cayman Island and Cozumel on three consecutive port days. The stops are in Jamaica, the Cayman Islands and Mexico, and calls last 8 to 9 hours. After another day at sea you're back in Galveston in the morning. Carnival Horizon (2018) carries up to 3,960 guests on 15 decks and has 14 restaurants, 7 of them included in the fare.