Turkey Point Breakwater serves as an artificial reef formed by the rocky structure of the marina breakwall. This freshwater site offers depths ranging from 2 to 10 metres, with an average depth of 6 metres. Divers can expect moderate currents and visibility typically between 15 and 18 metres. Entry is via the shore. The site is suitable for intermediate divers, though conditions vary. Hazards include boat traffic, cold water, low visibility, and surge. Facilities available at the location include parking, toilets, and showers. Snorkelling is possible at this site, with a rating of 3 out of 5.

The Cecil J is a freshwater wreck dive located in Lake Erie, accessible only by boat. The site sits at depths ranging from 5 to 30 metres, with an average depth of 15 metres. Divers encounter mild currents and visibility that fluctuates between 5 and 20 metres. Due to the wreck structure, entanglement is a primary hazard, requiring careful buoyancy control. Water temperatures vary significantly throughout the year, from 1C in winter to 23C in summer, and a thermocline is present. A drysuit or thick wetsuit with hood and gloves is recommended to manage the cold water. Divers should check local conditions for visibility shifts before departure.

Ryerson's Island Shallows is a freshwater site located in the Inner Bay of the Great Lakes and Ontario, Canada. This area features shallow, protected waters surrounding a small island, characterised by a mix of reef and seagrass habitats. The site is suitable for beginners and requires boat access. Water temperatures fluctuate significantly throughout the year, ranging from 1C in the winter months to 23C in August. Facilities available at the site include parking, toilets, and showers. The current is generally mild, making it a manageable location for snorkelling activities.

Pottahawk Point is a shallow sandbar located at the boundary of the Inner and Outer Bays in the Great Lakes of Ontario. This site features sandy flats and weed beds, offering a shallow environment for snorkelers with depths ranging from 1 to 5 metres. Access is by boat only, as the site is situated 8 kilometres from the shore. Conditions vary, with visibility typically between 3 and 10 metres and mild currents. Hazards include boat traffic, surge, and cold water temperatures. The site is suitable for beginners, though water temperatures fluctuate significantly throughout the year, peaking in late summer.

Monarch's Rest Beach is a shore-entry site located within Long Point Provincial Park. The topography features a sandy bottom that gradually transitions into a drop-off, with depths ranging from 1 to 5 metres and an average of 2 metres. This site is suitable for beginners and offers a typical snorkel duration of 30 minutes. Water temperatures vary significantly throughout the year, reaching up to 23C in August, though conditions remain cold outside of the summer months. Species recorded around this area include various freshwater fish and invertebrates such as snails, blue gill, perch, and crayfish. Facilities at the beach include parking, toilets, and showers. Hazards include cold water, jellyfish, and surf.

Millionaires in the Inner Bay is a sheltered freshwater site near the Old Cut channel. The topography consists of a dark, weedy bottom featuring both reef and seagrass habitats. This area is notably warmer and calmer than the open lake, making it suitable for beginners. Divers can access the site from either the shore or by boat. Conditions are generally mild, though water temperatures fluctuate significantly throughout the year, ranging from 1°C in winter to 23°C in August. Facilities available at the site include parking, toilets, showers, changing rooms, a rinse station, air fills, equipment rental, and boat charters.

Cottonwood Beach is a shore entry site located in the Old Park section of Long Point near Port Rowan. This freshwater location features shallow depths ranging from 1 to 5 metres, with an average depth of 2 metres. It is suitable for beginners, though divers should be aware of potential hazards including boat traffic, surf, and cold water temperatures. Water temperatures fluctuate significantly throughout the year, peaking at 23°C in August and dropping to 1°C in February. Facilities available at the site include parking, toilets, showers, changing rooms, and a rinse station. The site is generally considered more appropriate for shallow water activities than deep diving.

Peacock Point is a rocky limestone shelf extending into the lake, offering a stable bottom compared to nearby sandy bays. This freshwater site features significant seaweed beds that serve as nurseries for local aquatic life. Snorkelling here is suitable for beginners, with depths ranging from 1 to 5 metres and an average depth of 3 metres. Access is via a shore entry. Conditions include mild currents and visibility between 2 and 5 metres. Hazards include surf, low visibility, and jellyfish. Facilities at the site include parking, toilets, and showers. Water temperatures vary significantly throughout the year, reaching comfortable levels for swimming between July and September.