Atlas Park is a spring-fed flooded rock quarry located on the Gaspe Peninsula. This site serves as a training facility, featuring underwater platforms and sunken boats. Divers can explore depths ranging from 5 to 24 metres, with an average depth of 15 metres. The site is accessible via both shore and boat entries. Divers should be prepared for thermoclines and potential low visibility. The environment supports various temperate freshwater fish and invertebrates typical of the region. Facilities available on-site include parking, toilets, showers, changing rooms, a rinse station, air fills, and guided tours. Typical dive times are approximately 45 minutes.

Doucet Street Entry on the Gaspe Peninsula is a shore-access reef site offering varied underwater terrain. Divers and snorkellers can explore depths ranging from 3 to 11 metres, with the site reaching up to 11 metres at high tide. Conditions are variable, with visibility typically between 5 and 8 metres and moderate currents. The site is suited for intermediate skill levels. Hazards include cold water, surf, and the presence of jellyfish. Parking is available at the site. Water temperatures fluctuate significantly throughout the year, ranging from -1°C in winter months to 19°C in August.

Arseneau Street Entry on the Gaspe Peninsula provides shore access to a rocky seabed. Located north of Camp Ectus, the site is suitable for beginners and offers a snorkel rating of 4 out of 5. Water temperatures fluctuate significantly throughout the year, ranging from -1C in late winter to 19C in August. The shallow environment is well-suited for snorkelers exploring the rocky topography. Divers and snorkelers should be prepared for cold water conditions, as temperatures remain below 10C for much of the year, peaking only during the summer months.

Camp Ectus is a shore-entry reef site located on the Gaspe Peninsula in Chaleur Bay. This accessible location is suitable for beginners, offering shallow depths ranging from 1 to 5 metres with an average of 3 metres. The site is well-regarded for snorkelling, with typical sessions lasting around 30 minutes. Divers and snorkellers should be aware of the cold water temperatures, which fluctuate significantly throughout the year, and the presence of jellyfish. Parking is available at the end of the road, providing convenient access to the water. Conditions are generally mild, though the cold water requires appropriate thermal protection for extended periods in the bay.

Petit-Rocher Wharf on the Gaspe Peninsula is an artificial reef site centred on the rock pile foundation of the wharf. The structure features numerous crevices that provide habitat for small marine life and anemones. This site is suitable for advanced divers and snorkellers, with depths ranging from 6 to 10 metres and an average of 8 metres. Conditions include moderate currents and water temperatures that fluctuate between -1C and 19C, requiring appropriate cold-water gear for most of the year. Access is available via shore or boat. Divers should remain aware of boat traffic in the area. Night diving is permitted, and guided tours are available for those visiting the site.

Beresford Beach in Canada is a shallow reef site suitable for beginners, featuring rocky patches near a salt marsh outlet. The site is characterised by very shallow depths ranging from 0 to 3 metres, making it accessible for shore entries. Divers and snorkellers should be aware of potential hazards including surf, surge, low visibility, entanglement, and the presence of sea urchins. Water temperatures fluctuate significantly throughout the year, ranging from -1°C to 19°C, necessitating appropriate thermal protection. Facilities at the location include parking, toilets, showers, changing rooms, a rinse station, a cafe, first aid, a dive shop, and boat charter services.

Youghall Beach near Bathurst is a sandy coastal site featuring shallow sandbars that create accessible pools at low tide. With depths typically ranging between 1 and 3 metres, the site is suitable for beginners. Water temperatures vary significantly throughout the year, reaching up to 19C in August. Entry is directly from the shore. While the area is known for being relatively warm for the region, divers and snorkellers should be aware of the potential for strong currents. Facilities available at the beach include parking, toilets, showers, equipment rental, a cafe, and guided tours.

Heron Island is a provincial reserve located in the St. Lawrence and Quebec region, accessible exclusively by boat. Snorkellers can explore the south side of the island, which is characterised by extensive clam beds and mussel bars. The site is rated 4/5 for snorkelling, though conditions vary significantly due to the presence of strong currents and surf. Water temperatures fluctuate throughout the year, ranging from -1C in the winter months to 18C during July and August. Due to the challenging water conditions, this site is best suited for intermediate-level snorkellers.