St. Clair River
Sunday, August 3, 2025 River Diving
Location Tashmoo Marina
3272 S Channel Dr, Harsens Island, MI
Meeting Time at the Marina: 10:00 am
Cost of the Champion Auto Ferry: (approx. $15.00 round trip)
Not River Certified? Sign up for our River & Current Certification – Lecture is July 29, 2025 at Deep Six and complete your 2 open water dives on this St. Clair River adventure.
Availability: Contact us for booking information
The history of the river stretches hundreds of years back. Local tribes traversed its waters via canoe, harvesting an abundance of fish including white fish and sturgeon, and farmed its fertile banks. Port Huron was a community meeting place with its centralized location and easy access. The indigenous people were replaced with Europeans who over four hundred years logged, trapped, fished, and industrialized the river.
Used as a shipping lane, the river has wrecked many boats due to its swift current and the region’s stormy weather. Many ship skeletons remain buried in the river’s bottom. Trash from the settlers also lies below and paints a picture of how people lived during the period. Divers have flocked to the river over the years to seek these hidden treasures. The St. Clair River is low-cost to explore, as a diver can gain access on the sides and does not have to hire a charter vessel. Join us in this underwater treasure hunt.