The Caribbean is rich with theme party sites, many featuring the special environmental attractions of the region. In Bermuda, the new Bermuda Underwater Exploration Institute has two floors of multisensory exhibits that showcase the undersea world, including a simulated dive. The facility includes a 145-seat auditorium, a reception area for up to 225 attendees, and the Royal Caribbean Lounge for up to 85 persons at a reception. The Bermuda Aquarium, National History Museum, and Zoo is also available for group use, accommodating 220 at a reception in the aquarium area, which is home to the largest living coral reef exhibit in the Western Hemisphere. The Caribbean's other aquatic event venues include Coral Island in Nassau, Bahamas and the Seaquarium in Curacao.

For groups looking for undersea adventure, the Atlantis submarines offer private parties. Up to 28 passengers can travel in the submarines based in Barbados, Aruba, and Nassau, and as many as 46 can journey on the Grand Cayman and St. Thomas vessels. Rides can be customized for a corporate group: Past underwater adventures have included submerging logos and corporate symbols so the sub "discovers" the items on the dive. Some meeting planners have even put the CEO in scuba gear for an outside-the-sub visit with attendees.

Back on the surface, yachts are a popular group option. The Moorings, in Tortola, British Virgin Islands, offers luxury vessels for teambuilding events or gala parties. In Sint Maarten, groups can charter America's Cup yachts for a memorable event at St. Maarten 12-Metre Challenge in Philipsburg. Sleek vessels, including Dennis Conners's Stars and Stripes, winner of the 1987 America's Cup, are crewed by groups of 18 guests. After a quick practice run to test newly learned skills, the crews compete in a short race.