The Niagara Divers Association will present its 15th Annual Shipwrecks Symposium on April 4, 2010. This one-day symposium on shipwrecks will feature multimedia presentations with internationally renowned speakers from both the United States and Canada. Primary presentations may be up to 45 minutes in length, but most are approximately 20 - 25 minutes, with additional time allotted for question and answer. Live commentary is preferred to "canned" packages. Short, 5 minute maximum, presentations (primarily to introduce new topics or presenters) are also being requested. All presentations MUST be shipwreck-related and we try for an even split between recreational and technical topics.