Landon Bay in the Thousand Islands offers a freshwater dive experience featuring a large, flat granite rock that extends into the water, serving as a natural platform for shore entries. The bay is characterised by its shallow, broad topography, which functions as a nursery for local aquatic life. Divers can expect to encounter typical temperate freshwater fish and invertebrates within this habitat. Conditions at this site are variable, with water temperatures ranging from 2C to 23C throughout the year. Due to the presence of boat traffic and strong currents, divers should exercise caution. The site is suitable for beginners and provides facilities including parking and toilets.

The A E Vickery is a shipwreck located in the St. Lawrence River, suitable for advanced divers. This freshwater site sits at depths between 18 and 35 metres, with an average depth of 24 metres. Access is by boat only, and divers should be prepared for strong currents and potential boat traffic. The environment includes overhead sections, requiring appropriate training and experience. Visibility ranges from 8 to 21 metres, and water temperatures fluctuate significantly throughout the year, from 2°C to 18°C. The site supports a variety of temperate freshwater fish and invertebrates typical of the region.

The Ash Island Barge is a freshwater wreck dive located in the Thousand Islands, Canada. Resting at depths between 24 and 40 metres, with an average depth of 30 metres, this site is suited for intermediate divers. Access is by boat only. Divers should be prepared for moderate currents and visibility ranging from 5 to 10 metres. The wreck structure presents hazards including entanglement risks, boat traffic, and the potential for rapidly changing visibility. A typical dive lasts 40 minutes. Due to the depth and environmental conditions, divers should confirm surface marker buoy requirements and establish a clear ascent plan before descending.

Ivy Lea Campground Beach is a shore-entry dive site located in the Thousand Islands region of the St. Lawrence River. The topography consists of a mix of reef, wall, and artificial reef structures. Divers can explore depths ranging from 1 to 27 metres, with an average depth of 10 metres. Visibility typically fluctuates between 3 and 10 metres. Due to the potential for cold water, strong currents, and entanglement hazards, divers should remain aware of their depth and air consumption. The site features on-site parking and showers, facilitating straightforward kit-up and post-dive procedures. The habitat supports various temperate freshwater fish and invertebrates.

Kinghorn is a freshwater wreck dive located 122 metres from shore in the Thousand Islands. The site sits at a uniform depth of 27 metres and is strictly for advanced divers holding deep certification. Access is exclusively by boat charter. Divers must manage strong currents and variable visibility ranging from 5 to 10 metres. Due to the combination of deep water, significant current, and active boat traffic, divers should coordinate descents and ascents closely with their charter crew. Always check current conditions before entry, as they can shift significantly and impact both penetration safety and ascent profiles.

Rockport Wall is a freshwater site in the St. Lawrence River featuring a granite wall, drift diving, and wreck exploration. The site offers a wide depth range from 3 to 76 metres, making it suitable for intermediate divers. Shore entry is available near Cornwall's Pub. Conditions vary, with visibility ranging from 5 to 30 metres and moderate currents. The upper shelves between 3 and 6 metres provide rock formations suitable for snorkelling. Divers should be aware of boat traffic, the significant depth, and strong currents. Facilities including parking, a cafe, and a dive shop are located nearby.

Loughborough Lake in the Thousand Islands region offers a freshwater drop-off dive experience. The site features a depth range between 6m and 38m, with an average depth of 8m. Divers should anticipate a metalimnion layer between 8m and 10m. Surface temperatures reach 24°C, though temperatures drop to a minimum of 5°C at depth. Access to this site requires a boat. Hazards include cold water, potential for entanglement, and low visibility. The habitat supports various temperate freshwater fish and invertebrates typical of the region. This site is suitable for beginners, though conditions vary.

The Wolfe Islander II is a shipwreck and artificial reef located 500 metres offshore in Kingston Harbour. Resting at depths between 7 and 27 metres, with an average depth of 18 metres, this site requires boat access. Divers can explore the vessel, which features an accessible pilothouse and engine room. Conditions include mild currents and visibility ranging from 5 to 18 metres. Water temperatures are cold, typically remaining between 4 and 6 degrees Celsius at depth throughout the season. This site is suited for intermediate divers due to potential hazards including entanglement risks, low visibility, and cold water temperatures.