The hull of Sweepstakes lies just twenty feet below clear blue water of Ontario lake where it sank in 1885

The world's ocean floor is littered with around 3 million shipwrecks according to the United Nations. 

But one of the most captivating is in a pool of water much smaller - the bottom of an Ontario lake.

Shimmering in the clear blue water just twenty feet below the surface lies the Sweepstakes, a 19th century boat.