Welcome to SLD (Shotline Diving)’s Wiki

St. Lawrence River

The St. Lawrence River and Seaway is of vital geographic and economic importance to the Great Lakes system, connecting the lakes to the Atlantic Ocean and providing navigation to deep-draft ocean vessels. Approximately 800 miles (1,287 km) long, the St. Lawrence River can be divided into three broad sections: the freshwater river, which extends from Lake Ontario to just outside the city of Quebec

Lake Ontario

Lake Ontario is one of the five Great Lakes of North America. It is surrounded on the north, west, and southwest by the Canadian province of Ontario, and on the south and east by the U.S. state of New York, whose water boundaries, along the international border, meet in the middle of the lake

Shore Dives

Shore Dives

...and the Rest

Other Lakes, Rivers, and stuff we find.


References to sites on the Web.

Just a bunch of people loving Maritime History above and below the surface. We have no commercial interests in the Diving World and none of us work in the Commerical side of the industry. The present focus is Lake Ontario – Cornwall/New York but when we find information on other great lakes wrecks, You find it here. We also encourage those that would like to learn or join us to help record our underwater heritage and underwater playgrounds

Some members are active certified instructors but do not recruit students for courses, Members include Past presidents of Various Heritage groups in Ontario, Highly Skill Divers capable of photography and video at all levels of diving, they include retired servicemen on both sides of the lake and they include you when you brag about your diving and the wrecks on various platforms.

Now you know us and see what we’ve accumulated and made public for free for you the diver or wannabe, or enthusiasts don’t matter to us, see an error contact us, see something out of whack, contact us, see something underwater, yeah contact us. Get the point. We want to hear about diving, we want to hear about wrecks and we want to see your observations, So much we’ve given you a chance below.

This Day in Great Lakes History – Diving Related

Still Researching


Dive safe and often

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