Matane-sur-Mer Beach is a long, pebbly shoreline situated west of the Matane River mouth on the Gaspé Peninsula. Snorkeling is possible in the shallow, calmer areas near the shore, with depths typically ranging between 1 and 3 metres. The site is suitable for beginners, though conditions are challenging due to very cold water temperatures, which rarely exceed 15°C, and low visibility of 1 to 3 metres. Divers and snorkellers should be aware of hazards including surf, rip currents, and sea urchins. Access is via the shore, with parking facilities available nearby. Typical sessions last around 30 minutes.

Plage de Sainte-Félicité, located within the Parc Isabelle Boulay on the Gaspé Peninsula, offers a shore-entry snorkeling experience over a reef environment. The site is best accessed at low tide to explore tide pools, as the open water conditions are frequently affected by strong currents and surf. Depths are shallow, averaging 1 metre with a maximum of 2 metres. Visibility ranges from 15 to 30 metres, though water temperatures remain cold, typically hovering around 4 degrees Celsius. The habitat supports a variety of temperate marine life, including various fish, crustaceans, and echinoderms. Facilities at the site include parking, toilets, showers, changing rooms, a rinse station, and a cafe.

Grosses-Roches features a rocky seabed situated near the municipal pier and launching ramp on the Gaspé Peninsula. This site offers a transition between river and maritime ecosystems, presenting a mix of reef and wall topography. Depths range from 11 to 41 metres, making it suitable for intermediate divers. Access is via a shore entry. Facilities available at the site include parking, toilets, showers, changing rooms, a rinse station, air fills, a dive shop, and boat charter services. Given the water temperatures, which fluctuate between -1C and 14C throughout the year, cold water diving equipment is required.

Les Îlets, located on the Gaspé Peninsula, is a shore-access reef site suitable for intermediate divers and snorkellers. The site features rocky islets where a short swim from the shore leads to the north face. Divers should be prepared for cold water conditions, with temperatures ranging from -1C to 15C, and a dry suit is recommended. The site is subject to moderate currents, which can be a hazard. Facilities available at the location include parking, toilets, and showers. The habitat supports a variety of temperate marine life, including various fish and invertebrates typical of the region.