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.

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.

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.

Elizabeth Park is a muck dive site located in the Detroit River, suitable only for advanced divers. The site features depths ranging from 2 to 9 metres and is accessed via the shore. Divers should be prepared for strong currents, low visibility, and potential hazards including boat traffic and entanglement. Due to these challenging conditions, specialized equipment and training for river diving are required. The site offers opportunities to search for historical items such as old bottles. Facilities at the park include parking, toilets, and showers. Water temperatures fluctuate significantly throughout the year, ranging from 1 degree Celsius in winter to 23 degrees Celsius in July.

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.

The George Worthington is a freshwater wreck located in Lake Erie, resting at depths between 7 and 12 metres. This site offers a distinct structure providing hard relief against the otherwise flat lakebed. Divers require boat access to reach the wreck, which is suitable for intermediate-level divers. Conditions are variable, with visibility ranging from 3 to 10 metres and water temperatures fluctuating significantly by season. Divers should be aware of entanglement hazards and the potential for low visibility. A torch is recommended to inspect shadowed sections of the hull. Always monitor local surface conditions for surge and swell before entry.