About Who's Been Here Revisions William H. Barnum Mackinac, MI Max Depth: 71-80ft/22-24m Average Viz: 16-20ft/5-6m Entry Type: Boat Bottom Composition: Clay/Muck Aquatic Life: Might See Something Rating: 5.00 by 2 divers Spring: Under 50°F/10°C Summer: 50-55°F/10-13°C Fall: 50-55°F/10-13°C Winter: Under 50°F/10°C 4/17/2009 9:26 AM

William H. Barnum is a boat accessible fresh water dive site, located in Mackinac, MI. This dive site has an average rating of 5.00 out of 5 from 2 scuba divers. The maximum depth is 71-80ft/22-24m. The average visibility is 16-20ft/5-6m.

Comments

ScubaSmacks - 7/20/2015 1:31 PM Rating Added: 5 Great visibility. Small enough you can see all or most of the entire wreck.