The most surprising thing resulting from the 50-year absence of American tourists in Cuba is the remarkable health of the beautiful coral reefs that line its shores.
Don Wildman shares his advice on how to explore America's underworld.
What hasn't Wildman crossed off his list yet?
Find out what Don Wildman takes with him on every trip.
Don Wildman was destined to be a schoolteacher and he's neurotic about packing.