This Year's Speakers


Brendon Baillod - Shipwrecks of the Keweenaw Waterway

Great Lakes Maritime Historian


Michigan's Portage Lake Ship Canal was once a major artery for Lake Superior commerce. Begun in 1859, this important waterway saw the delivery of untold tons of iron ore, copper and lumber to the industrial cities of the lower Lakes. read more...

Amy Rosebrough - The Hickory, Dickory, Dock: The Ghost Ports of Lake Michigan

Staff Archaeologist WHS


In the mid to late 19th centuries, dozens of bridge piers were built along the eastern shores of Wisconsin. The piers and the lumbering and packet fleets that serviced them withstood fire and ice and storms both real and economic to form the hearts of small, short-lived port communities. read more...

Andrew Goodman - Photogrammetry

Diver, Photographer


Photogrammetry read more...

Michael Raymond - Cave Diving in Minnesota

Cave Diver


Michael will present some of the cave diving sites in Minnesota, including ongoing exploration, and the special techniques required. read more...

Jeff LeMoine - Liveaboard Life & Diving in the Maldives

Traveller Photographer, 1st VP of GLSPS


The Maldives, officially the Republic of Maldives, is a South Asian country, located 400 miles southwest of India. It is an island nation of 26 natural coral atolls spread over nearly 35,000 square miles. read more...