Rondeau Bay at the Marsh Trail entry offers a shallow freshwater snorkeling experience within a sheltered bay environment. The site features a mix of reef and seagrass habitats, with an average depth of two metres, ranging between one and three metres. Conditions are generally mild, though divers should be aware of potential hazards including boat traffic, entanglement risks, and variable visibility. The site is suitable for beginners and provides both shore and boat access. Facilities at the location include toilets. Water temperatures fluctuate significantly throughout the year, ranging from 1C in February to 23C in August.

Rondeau Provincial Park South Beach is a freshwater shore-entry site located on Lake Erie near the park's Visitor Centre. The site features sandy ridges and driftwood structures that provide interest for snorkellers. Conditions are variable, with depths starting at one metre and mild currents present. The site is suitable for beginners, though snorkellers should be aware of potential hazards including surf and rip currents. Facilities at the park include parking, toilets, showers, changing rooms, and a rinse station. Typical sessions last around 30 minutes. Water temperatures fluctuate significantly throughout the year, ranging from 1 degree Celsius in February to 24 degrees Celsius in August.

The Lycoming is a shallow shipwreck located in Lake Erie, resting at depths between 3 and 7 metres. This site is suitable for beginner divers due to its accessible depth and the requirement for boat entry. Visibility typically ranges from 5 to 10 metres, though conditions can fluctuate. Divers should exercise caution regarding entanglement risks posed by the wreck structure and remain aware of potential visibility changes. As a freshwater site, the wreck provides hard relief against the lake bottom. Divers are advised to bring a torch to inspect the structure and to monitor their depth closely throughout the dive.

Rondeau Bay Marshes offers a freshwater snorkeling experience located on the bay side of the peninsula. The site is characterized by dense aquatic vegetation within a shallow wetland environment. Depths typically range from 1 to 3 metres, with an average of 2 metres. Snorkellers should be aware of hazards including boat traffic, potential entanglement in vegetation, and low visibility, which generally fluctuates between 1 and 3 metres. Entry is via the shore, and the site features mild currents. Facilities at the location include parking and toilets. This site is suited for intermediate snorkellers, with a typical session lasting approximately 30 minutes.

Erieau Pier and Lighthouse offers a freshwater shore entry site characterised by rocky foundations and submerged boulders. These structures provide habitat for local fish populations. The site is suitable for beginners, with mild currents and visibility ranging from 5 to 60 metres. As Lake Erie is the shallowest and warmest of the Great Lakes, water temperatures fluctuate significantly, reaching up to 24C in August and dropping to 1C in February. Divers and snorkellers should be prepared for cold water, potential entanglement hazards, and variable visibility. Parking is available for site access. Typical dives last approximately 30 minutes.

The Erieau Schooner Fragment Site features the remains of a 19th-century shipwreck located in shallow freshwater near the shore. Snorkellers can explore the area to find smaller debris and artifacts partially buried in the sand. The site is suitable for beginners, with depths ranging from 1 to 5 metres and an average depth of 3 metres. Access is via the shore. Conditions at this location vary, and visitors should be aware of potential hazards including boat traffic, cold water, low visibility, and surf. The water temperature fluctuates significantly throughout the year, ranging from 1C in February to 24C in August.

Erieau Main Beach offers a shallow, sandy-bottomed freshwater environment suitable for beginners and families. Snorkelers can explore the buoy-protected zone, which extends up to 100 metres from the shore. Depths range from the surface to 3 metres, with visibility typically between 3 and 10 metres. Conditions vary, and users should be aware of potential hazards including surf, rip currents, and fluctuating visibility. The site provides convenient shore access and is supported by facilities such as parking, toilets, showers, and changing rooms. Water temperatures fluctuate significantly throughout the year, ranging from 1 degree Celsius in February to 24 degrees Celsius in August.

The Merida is a freshwater wreck located in Lake Erie, resting at depths between 18 and 24 metres with an average of 21 metres. This site is accessible by boat only, situated 40 kilometres from shore. Divers encounter visibility ranging from 5 to 6 metres. The environment features a thermocline around 15 metres, with surface temperatures reaching 24C in summer and bottom temperatures averaging 10.6C. Due to the depth, cold water, and potential for entanglement within the structure, this site is suited for intermediate divers. Proper gas management and buoyancy control are essential, and a drysuit is recommended outside of the warmer summer months.