In all seriousness, the Great Lakes are amazing for shipwrecks. The cold water keeps the boat's from rotting away...
Decades ago I saw a solo folk musician who performed a lot of maritime stuff (he closed his show with what I call the Dreaded Lightfoot Song) and had an interesting patter. One of the historical tidbits he mentioned (dunno if it's 100 percent on the mark) was that, during the first 150 years of documented travel on the Great Lakes (commercial and otherwise I suppose), on average a watercraft of some kind/size went down every six days.