Jacks or Better Casino is located on a 155-foot vessel, which sails twice daily from Mayport, Florida. We have over 180 slot machines and table games, including Blackjack, Craps, and Roulette. Our Sports books allow you to book any on any sporting event in the world for your convenience. Jacks or Better also features separate smoking and non-smoking decks for the customer’s convenience. Come experience Vegas style gambling in Florida at Jacks or Better Casino.