Cross 42 bridges and hop 32 islands by bus before reaching Key West which is the southernmost city in the continental U.S! When you get to Key West you will have time to explore on your own. Some of the more popular activities include a visit to Hemingway´s House, a trolley or train tour, a kayaking adventure, and a dolphin-watching cruise. Don't miss out on seeing Mallory Square - a place where many people gather for a daily celebration. Or, just relax to the sounds of the waves on the beach. This tour package includes a glass-bottom boat ride to the coral reef of Key West. This reef is the third-largest in the world and it is home to a plethora of underwater life.