

Best for intermediate divers, 8-25m, boat entry, strong current.
St Clair River, located near Rondeau and Erieau, offers a challenging drift diving experience featuring various shipwrecks. Divers must access the site by boat due to the strong currents present in the river. Depths range from 8 to 25 metres, with an average depth of 15 metres. Visibility is variable, fluctuating between 3 and 20 metres. Water temperatures are highly seasonal, ranging from 1°C in winter to 22°C in summer, with sharp thermoclines often encountered in deeper channel wrecks. Given the strong currents, boat traffic, and potential for entanglement, this site is suited for intermediate divers. Night diving is permitted.
42.99671, -82.42248
You will need to swim or climb back up river to exit because if you make it too far down river there is no place to exit the sea wall without a lengthy drift.
Entry is possible from the shore, often near the Bluewater Bridges or specific stanchion posts. Divers must be prepared to manage strong currents and potential freighter traffic.
Recorded at this site
Depth
8-25m
Visibility
3-20m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
1-22°C
Current
Strong
No, this site is rated for intermediate divers due to the strong currents and potential for low visibility.
The site depths range from 8 to 25 metres, with an average depth of 15 metres.
A boat is required to access the dive sites in the St Clair River.
The site is primarily used for drift and wreck diving; snorkeling is not recommended due to strong currents and boat traffic.
Divers should be aware of strong currents, boat traffic, cold water, entanglement risks, and low visibility.
Diving at St Clair River in Sarnia requires the following certifications: Advanced. Always dive within your training limits.
A drysuit recommended is recommended for diving at St Clair River in Sarnia. Water temperatures range from 1°C to 22°C.
St Clair River in Sarnia can have strong currents. Advanced experience with drift diving and current navigation is recommended.
Visibility at St Clair River in Sarnia typically ranges from 3 metres to 20 metres. Conditions vary with weather, tides, and seasons.