Kingston is considered by many to be in the top three scuba diving destinations in Ontario.  Owing to its location where Lake Ontario empties into the St. Lawrence River, the area has enjoyed a rich maritime history since the 18th century.  Consequently, the area has a high concentration of shipwrecks that are accessible to sport divers.

Diving in the Great Lakes is best in May and June when the weather (wind) is more predictable, and the visibility is at its highest (if you can stand the cold, that is).  We had another sunny day, with calm winds, but frigid water temperatures of 41-43 deg F.  The visibility was in the 30-40′ range.

The group decided to dive the Cornwall, a 177′ iron-hulled side-wheeler that was launched in 1855.  It had a very checkered past (eg. deaths, fires, etc.), as it had sailed under three different previous names.  It was later scuttled in 1928 by dynamiting after outliving its usefulness.