Seven Acre Shoal

Seven Acre Shoal is a navigational hazard at the east end of Lake Ontario, north of Snake Island, and 9 mi west of Kingston, Ontario.

During the War of 1812 the small Upper Canada government schooner Governor Simcoe was able to evade capture by sailing over the shoal, where a pursuing squadron of larger American vessels were too deep to follow. However she was sunk by a cannon salvo prior to entering Kingston's harbour.

The lake freighter Brulin grounded on the shoal in 1932.