Just one cruise to Bermuda was available out of Jacksonville. It was in the spring and included an overnight stay at the island.
Things to do at the Royal Naval Dockyard on Bermuda include Dophin Quest, where you can swim with the dolphins. The dockyard is also home to the National Museum of Bermuda featuring shipwreck artifacts, a giant mural, and fortifications history. Explore the crafts market and other shops. Enjoy the restaurants. Swim at Snorkel Park. Rent a jet ski.
From the dockyard you can catch a ferry to the historic towns of Hamilton and St George. Experience the nightlife on colorful Front Street. Walk the pink sand at Horseshoe Bay Beach and Elbow Beach. Ride a bike on the 18-mile Bermuda Railway Trail. April is a good time for whale watching in Bermuda.
Shore excursions offered by the cruise line at Bermuda include an island tour, ultimate catamaran sail, aquarium & caves, and snorkeling.
For more choices, see the Bermuda cruises out of Florida.