Snorkel the beautiful coral reefs of Dominica, trek the jungle paths of San Juan's rainforest, or explore the ancient Mayan ruins of Belize aboard Carnival Cruise Lines. Carnival coupon cruise discount offers are available to these exciting cruise destinations as well as others. Use your Carnival coupon cruise discount toward an exciting shore excursion like parasailing over a beautiful beach in Hawaii or swimming with the dolphins in the Caribbean. Mexico, Panama Canal, Hawaii, Belize, and the Caribbean offer so much in shore excursions. The list of onshore and offshore activities in endless you can use your Carnival cruise fun pass coupon to add to your fun.