K. Walter Ranta Memorial Park serves as a public shore access point along the Detroit River in Amherstburg. The site features a rocky shoreline that allows for shallow-water exploration of the riverbed. Conditions are variable, with water temperatures ranging from 1°C to 25°C throughout the year. Due to the nature of the river environment and cold water temperatures, this site is rated for intermediate snorkelers. Parking is available for visitors. Divers and snorkelers should be prepared for cold water hazards when entering the river.

White Sands is located at the southern tip of Boblo Island where the Detroit River meets Lake Erie. This site features a man-made white sand beach and a combination of natural and artificial reef structures. Snorkellers can explore depths ranging from 5 to 15 metres, with an average depth of 10 metres. Access is strictly by boat, as shore entry is not possible. Conditions include mild currents and visibility typically between 2 and 5 metres. Water temperatures fluctuate significantly throughout the year, ranging from 1 to 25 degrees Celsius. Due to the presence of boat traffic and potential entanglement hazards, this site is best suited for intermediate-level snorkellers.

Bar Point Shoal is a rocky shoal located at the mouth of the Detroit River. This site features a rugged lake bottom at depths ranging from 2 to 7 metres, with an average depth of 4 metres. Access is by boat only, as the site is situated 3,240 metres from the shore. Conditions at this location are variable, with moderate currents and visibility typically between 2 and 5 metres. Due to the presence of boat traffic, cold water temperatures, and strong currents, this site is suited for intermediate snorkelers. Water temperatures fluctuate significantly throughout the year, ranging from 1°C in winter to 25°C in July.

Holiday Beach is a popular shore-entry snorkeling site located along the Lake Erie shoreline near Rondeau and Erieau. The site features a long sandy beach with a shallow, sandy bottom, making it suitable for beginners. Water temperatures fluctuate significantly throughout the year, ranging from 1C in winter months to 25C in July. Divers and snorkellers should be aware of variable conditions, including potential rip currents, surf, surge, and periods of low visibility. On-site facilities include parking, toilets, showers, and changing rooms to support visitors.

Brest Bay in the Detroit River features submerged rock piles and ridges that provide vertical structure for divers and snorkellers. This freshwater site consists of both natural and artificial reef formations at depths of 3 to 5 metres. Access is strictly by boat, and the site is suited for intermediate divers due to variable conditions. Visibility typically ranges from 3 to 10 metres, with mild currents present. Water temperatures fluctuate significantly throughout the year, ranging from 1C in winter to 25C in July. Divers should remain aware of boat traffic and the risks associated with cold water, particularly outside of the summer months.

The M. I. Wilcox is a freshwater wreck situated at a consistent depth of 8 metres, making it an accessible site for beginner divers. Located 700 metres from the shore near Rondeau and Erieau, this wreck offers a dive experience with visibility typically ranging between 5 and 10 metres. Divers should be prepared for cold water temperatures, which fluctuate significantly throughout the year, and be aware of potential thermoclines. Hazards at this site include boat traffic, entanglement risks, and variable surf conditions. Dives typically last around 30 minutes. Thermal protection should be selected based on actual water conditions rather than the calendar month.

Sterling State Park, located on the Detroit River and Lake Erie, offers a mile of sandy shoreline suitable for beginner snorkelers. The site features a shallow reef environment with an average depth of 2 metres, ranging between 1 and 5 metres. Snorkelers can explore the sandy bottom and areas with submerged timber. Conditions vary, with visibility typically between 1 and 5 metres and moderate currents. Water temperatures fluctuate significantly throughout the year, from 1°C in winter to 25°C in July. Hazards include boat traffic, surf, rip currents, and low visibility. Facilities available on-site include parking, toilets, showers, changing rooms, and a rinse station.

Peche Island, located at the confluence of Lake St. Clair and the Detroit River, offers a unique freshwater snorkeling experience. The site features shallow canals and a northern rocky shoreline where snorkelers can explore historical ruins and various submerged structures. Access is available from both shore and boat, with the site situated 330 metres from the shore. Conditions vary, with moderate currents and potential for low visibility, cold water, and boat traffic. Due to these factors, including down currents and entanglement risks, this site is suited for intermediate snorkelers. Water temperatures fluctuate significantly throughout the year, ranging from 1°C in February to 23°C in August.