Forty Mile Creek Park is situated where the creek meets Lake Ontario, offering a unique environment defined by small rough-sand beaches and a rocky ridge. This site is suitable for intermediate snorkelers who can navigate the variable conditions of the lake and creek interface. Water temperatures fluctuate significantly throughout the year, ranging from 3C in the winter months to a peak of 21C during July and August. Access to the water is via the shore. Due to the nature of the environment, visitors should be prepared for changing water conditions and temperatures when planning their visit to this Niagara Peninsula location.

Murray Street Park in Grimsby offers shore access to Lake Ontario. This site is suitable for beginners, though divers should be prepared for cold water and low visibility, which typically ranges from 3 to 6 metres. A thermocline is often present, with temperatures below 9 metres dropping significantly compared to surface levels. Divers must remain aware of boat traffic in the area. The entry point is rocky, requiring caution when entering or exiting the water. Parking is available at this residential lakefront park, making it a convenient location for a quick dive in the Great Lakes region.

Casablanca Beach on the Niagara Peninsula offers a quiet freshwater snorkelling environment along the Great Lakes Waterfront Trail. The site features a shoreline composed of a mix of sand and stone. Water temperatures fluctuate significantly throughout the year, ranging from 3C in the winter months to 21C during July and August. Snorkellers should be aware of the potential for cold water and low visibility conditions. Access is via a shore entry, and the site provides basic facilities including parking and toilets. It is suitable for beginners seeking a tranquil experience away from larger crowds.

Fifty Point Conservation Area on the Niagara Peninsula offers a freshwater environment featuring a mix of sand and stone lakebed. Suitable for beginners, this site provides shore access for both diving and snorkelling. Conditions vary, with visibility typically ranging from 5 to 15 metres. Water temperatures fluctuate significantly throughout the year, reaching up to 21C in the summer months. Divers and snorkellers should be prepared for cold water, which remains a primary hazard at this location. On-site facilities include parking, toilets, showers, and changing rooms to support visitors.

La Grande Hermine is a 140-foot replica shipwreck located in the shallow waters of Jordan Harbour on the Niagara Peninsula. Situated approximately 15 metres from the shore, the wreck lies at depths ranging from 1 to 5 metres, with an average depth of 3 metres. The site is accessible by both shore and boat, though snorkelers should maintain a safe distance from the structure as it is currently being dismantled for safety. Conditions include moderate currents and variable visibility. Water temperatures fluctuate significantly throughout the year, ranging from 4°C in winter to 22°C in August. Parking is available at the site.

Cherry Beach, located at the end of Millen Road in Stoney Creek, offers a shallow freshwater snorkelling experience suitable for beginners. The site features a topography of sand mixed with submerged rock groynes, providing a simple layout for a quick shore entry. Depths range from 1 to 5 metres, with an average of 3 metres. Conditions vary significantly, with water temperatures fluctuating between 3C and 21C throughout the year. Divers and snorkellers should be prepared for potential hazards including cold water, surge, low visibility, and the presence of jellyfish. Facilities at the site include parking, toilets, and showers.

Charles Daley Park in Jordan offers shore access to a freshwater artificial reef environment. The site features a mix of sandy and rocky bottom topography, with snorkelling activities focused along the rocky breakwaters where fish congregate in crevices. Depths range from 1 to 7 metres, with an average of 4 metres, making it suitable for beginners. Conditions vary, with visibility typically between 3 and 10 metres and mild currents. Hazards include cold water and surf. Facilities at the park include parking, toilets, showers, changing rooms, and a rinse station. The site supports a variety of temperate freshwater fish and invertebrates typical of the Great Lakes region.

The Dredge Barges consist of the remains of three wooden barges that sank during the construction of a local water intake pipe. Located 50 metres from the shore near the Grays Road entry point, the site sits in depths ranging from 5 to 9 metres, with an average depth of 7 metres. This freshwater site is suitable for advanced divers due to moderate currents, potential entanglement hazards, and variable visibility between 5 and 20 metres. Snorkellers may view the upper sections of the wrecks during periods of high clarity. Divers should be prepared for cold water temperatures and a distinct thermocline, as well as potential boat traffic in the area.