Chris and Joan, a husband-and-wife team love to explore Great Lake shipwrecks. Joan has been the Chairman of the “Shipwrecks and our Marine Heritage” at “Our Wolrd Underwater” since 1996 and is author of “Diver’s Guide to the Kitchen”. Chris, a prize-winning photographer with a Master’s Degree in History, is currently president of the Underwater Archaeological Society of Chicago. He has written ten books, including the best selling “The Great Lakes Diving Guide”, and has appeared on the History Channel and Discovery Channel.