Prescott Scuba Park is a dedicated freshwater underwater park located along the Brockville Waterfront. The site features a concrete ramp for shore entry, leading to a variety of submerged attractions including training platforms, large anchors, and the S.S. Prescott, a small sunken dinghy. Depths range from 4 to 13 metres, with an average of 8 metres, making it suitable for beginners. Conditions vary, with visibility between 2 and 15 metres and mild currents. The site is accessible for both diving and snorkelling, with facilities including parking, toilets, changing rooms, and a dive shop. Divers should remain aware of boat traffic and potential entanglement hazards.

Lock 27 is a freshwater wreck dive located 800 metres from shore in the St. Lawrence River. The site sits at depths between 4 and 8 metres, with an average of 6 metres, making it suitable for intermediate divers. Divers experience a moderate current that can increase unexpectedly, requiring careful planning with a boat operator. Visibility typically ranges from 3 to 6 metres, and the use of a dive torch is recommended. Due to the wreck structure, entanglement hazards exist, and carrying a cutting tool is advised. The site is accessible by boat and supports night diving. Divers should be prepared for cold water temperatures.

Weehawk is a shallow drift dive and snorkel site located in the St. Lawrence River near Brockville. The site features the remains of an old steel ferry and the historic Lock 27. Divers and snorkellers can explore these structures at depths ranging from 3 to 6 metres, with an average depth of 4 metres. The site is accessed from the shore and is subject to strong currents, making it suitable for intermediate divers. Visibility varies between 5 and 18 metres. Due to the nature of the site, divers should be aware of potential boat traffic and entanglement hazards.

Torpedo Run is a navigational dive that begins at the Wee Hawk site, proceeds through the canal into the Saint Lawrence, and passes the Conestoga wreck. The route concludes at the beach near the legion. Divers should be aware that this site is subject to strong currents and variable visibility ranging from 1 to 6 metres. Due to the current, this site requires careful planning and navigation. It is accessible via both shore and boat entries. Water temperatures fluctuate between 25C and 30C throughout the year. This site is suitable for beginners, though the current conditions necessitate appropriate experience in moving water.

The Conestoga Wreck is a shore-accessible artificial reef located 23 metres from the Brockville Waterfront. Resting at depths between 3 and 9 metres, this site is suitable for beginners. Divers experience a moderate current, which introduces a drift element to the 40-minute dive. Visibility is variable, ranging from 3 to 25 metres. The site lacks a thermocline and maintains warmer temperatures than many other regional freshwater locations. Night diving is permitted, offering a different perspective of the structure. Hazards include entanglement risks and currents that can strengthen unexpectedly. Divers should secure loose equipment and maintain buoyancy control. Parking is available at the site.

Muscallonge is a freshwater wreck dive located 91 metres off the Brockville Waterfront. Resting at depths between 27 and 32 metres, this site is suited for intermediate divers due to the significant depth and strong currents. Visibility at the site varies between 10 and 30 metres. Access is by boat only, and divers must remain vigilant regarding heavy boat traffic in the area. Given the challenging conditions and potential for entanglement, a surface marker buoy is strongly recommended. Guided tours are available through local dive shops, and a site briefing is essential to manage the currents and depth safely.

Centeen Memorial Dive Park is a freshwater artificial reef located along the Brockville Waterfront. Designed specifically for training, the site features three underwater platforms and various sculptures. Divers can explore depths between 3 and 13 metres, with an average depth of 10 metres. The site offers convenient shore entry and is suitable for beginners, provided they stay within the park boundaries to avoid stronger currents. Visibility typically ranges from 5 to 15 metres, and water temperatures remain consistent from the surface to the bottom. On-site facilities include parking, toilets, showers, and nearby access to air fills.

The Robert Gaskin is an 1863 double-masted wooden barge resting in the St. Lawrence River. Measuring 113 feet by 26 feet, the vessel features a square stern and sits on a firm bottom with light silt. The wreck lies with its bow facing inland, with depths ranging from 17 to 21 metres. Divers typically encounter a mild current across the deck. Located 450 metres from shore, the site is situated near the main shipping channel, necessitating caution due to boat traffic. Entry is possible from both shore and boat. Visibility at the site fluctuates between 5 and 15 metres, and the wreck is suitable for intermediate divers.