Thanks to Mlive for this: MANITOU PASSAGE, MI – When Chris Roxburgh sinks below the surface of a Great Lake, all the conversations and mental clutter of the day just slip away. Depth brings quiet. Sunlight is traded for filtered shades of blue and green. He focuses his mind on his scuba gear, the technical … Continue reading Michigan shipwreck diver’s fascinating look at one of Lake Michigan’s most dangerous places: the famous Manitou Passage shipping corridor