I created some GIF's with Google Earth showing some of our local wreck sites and sinkholes.
This should not be used as a navigational aid, they are are just general area's

Black River to Thunder Bay Island wrecks

Thunder Bay to Middle Island Wrecks

Rockport, and Presque Isle wrecks

Rockport Sinkholes (most are divable)

This site was last updated 11/11/06