Rocher Comeau is an underwater island located at the mouth of Baie Saint-Pancrace, featuring a dramatic wall and reef topography. The summit of this formation reaches within 5 metres of the surface. Divers can expect visibility ranging from 12 to 13 metres. Due to the cold water temperatures, which fluctuate between -1°C and 14°C, a drysuit is required for all dives. This site is situated 7 kilometres from shore and requires boat access. The environment supports a variety of temperate marine life, including various fish, crustaceans, and echinoderms typical of the region. Given the depth and cold conditions, this site is intended for advanced divers.

Baie Saint-Pancrace is a fjord-like bay on the Gaspé Peninsula, characterised by its sheltered waters that offer protection from strong winds and currents. The underwater topography consists of rocky escarpments transitioning to a sandy bottom. Snorkellers can access the site via shore entry or a floating dock. Due to the cold water temperatures, which fluctuate between -1C and 14C throughout the year, this location is best suited for intermediate snorkellers. The bay provides a stable environment for those prepared for cold-water conditions.

Les Feux d'alignement is a vertical wall site located at the head of Baie-des-Anglais. The topography features a distinct wall structure transitioning into sandy flats, marked by two orange mooring buoys. This site is accessed by boat and is rated for intermediate snorkelers due to the variable water temperatures, which range from -1C in February to 14C in July and August. Divers and snorkelers should be prepared for cold-water conditions throughout the year. The site is noted for its vertical wall profile, providing a unique underwater landscape for those exploring the Gaspé Peninsula region.

Baie Garde-Feux is a marine dive site located on the Gaspé Peninsula, featuring a combination of reef and wall topography. Divers access this site by boat, which is required due to its location. The site offers depths ranging from 8 to 18 metres with mild currents and visibility typically between 5 and 15 metres. Water temperatures are cold, fluctuating between -1C and 8C throughout the year, presenting a risk of hypothermia. The site is suitable for intermediate divers and offers a 4/5 rating for snorkelling. Facilities available nearby include parking, toilets, showers, changing rooms, air fills, equipment rental, a cafe, a dive shop, and boat charter services.

Arthur A. Schmon Lookout Beach, locally known as the Beach between the two towers, provides a shore-entry point into the St. Lawrence. The site features rocky patches along the shoreline that offer a habitat for small marine creatures. With water temperatures ranging from -1C to 14C throughout the year, this site is suitable for beginners interested in snorkelling. The topography consists of a rocky reef environment. Divers and snorkellers should be prepared for cold water conditions, as temperatures peak at 14C during July and August.

Champlain Beach, located on the Gaspé Peninsula near Baie-Comeau, offers a shore-entry snorkeling experience suitable for beginners. The site is characterized by shallow sandy bottoms and shell beds, with a notable sandbar that becomes accessible at low tide. Water temperatures are extremely cold throughout the year, ranging from -1°C to 14°C, and require specialized thermal protection such as a drysuit for safety. Conditions at this site are subject to variation, with low visibility often present. Parking facilities are available for visitors. Due to the challenging water temperatures and limited visibility, this site is rated 2/5 for snorkeling.

Lac Malfait is a freshwater site located 15 kilometres from the centre of Baie-Comeau. This lake offers a distinct environment compared to coastal waters, featuring typical Quebec lake flora and freshwater fish species. The site is accessible via a shore entry and provides basic facilities including parking, toilets, and showers. Water temperatures are seasonal and cool, with average summer highs reaching approximately 13°C. Due to these conditions, the site is suitable for beginners looking for a freshwater snorkeling experience. Divers and snorkellers should be prepared for cold water temperatures throughout the year.

Vieux Quai is a shallow shore-entry reef dive located in the St. Lawrence estuary. The site features depths between 1 and 2 metres, making it suitable for beginners. Visibility is high, reaching up to 30 metres. Divers must contend with a moderate current that can shift, requiring careful planning for entry and exit. Due to water temperatures ranging from -1 to 15 degrees Celsius, a drysuit is necessary. Parking is available at the site, and guided tours are offered to assist with navigating the local conditions. Divers should remain aware of boat traffic and potential hazards such as sharp rocks and sea urchins.