La Noire in Saint-Malo, France, is a marine site featuring a combination of reef and seagrass habitats. Divers can expect a consistent depth of 10 metres. Access to the water is via a shore entry. Conditions at this location are generally mild, though divers should remain aware of boat traffic in the area. Water temperatures fluctuate throughout the year, ranging from 11C in the winter months to 16C in August. This site is suitable for beginner divers looking to explore local coastal habitats.

Le Diben is a shore-entry reef dive located in the Baie de Morlaix. The site features a reef structure ranging from 10 to 20 metres in depth, making it suitable for beginner divers. Visibility typically fluctuates between 5 and 15 metres. Divers should expect moderate currents and plan entries and exits according to tidal movements. Water temperatures remain cool, between 11 and 14 degrees Celsius, necessitating appropriate thermal protection. Due to the presence of vessel traffic, the use of a surface marker buoy is essential at all times to ensure visibility. On-site facilities include showers and toilets for post-dive use.

La Base à Dom is a marine dive site located in Saint-Malo, France. The site features a consistent depth of approximately 10 metres. Water temperatures in this area fluctuate throughout the year, ranging from 11C in the winter months to 16C during August. Given the depth and environmental conditions, this site is suitable for divers with appropriate cold-water experience. Access to the site is typically managed via boat from the local area. As a marine environment, the topography is subject to the tidal conditions characteristic of the Brittany and Normandy region.

Pointe De Primel is a reef site located in Saint-Malo, France, offering shore access for divers. The site features an average depth of 9 metres, with a recorded range between 9 and 10 metres. Conditions at this location are variable, with visibility ranging from 1 to 15 metres and water temperatures fluctuating between 11C and 16C throughout the year. Divers should be aware of potential hazards including surf and strong currents. The site is suitable for beginners and provides facilities such as changing rooms and equipment rental for those visiting the area.

Le Corbeau is a reef dive site located in the Baie de Morlaix, Saint-Malo, offering depths between 15 and 30 metres. Divers access the site by boat to explore the reef structure. Visibility varies significantly, ranging from 10 to 30 metres. The site is subject to strong currents, making it essential to time dives around slack water and use a surface marker buoy. Water temperatures remain cool throughout the year, between 11 and 14 degrees Celsius, necessitating a thick wetsuit or drysuit. While suitable for beginners, the conditions require careful planning. Species recorded around this area include gray seals, squat lobsters, wrasses, common lobsters, catsharks, conger eels, flatworms, crabs, sea hares, sea stars, shrimp, spiny spider crabs, soft corals, and brittle stars.

Île Verte is an uninhabited islet located 1852 metres from the shore near Saint-Malo. The site features a combination of reef and seagrass habitats, with a shallow lagoon area between the rocks. Diving and snorkelling are conducted via boat access. Conditions at the site are variable, with depths ranging from 5 to 15 metres and visibility between 3 and 10 metres. Divers and snorkellers should be aware of moderate currents and potential low visibility. The site is suitable for beginners, with typical dives lasting approximately 45 minutes. Water temperatures remain cool throughout the year, fluctuating between 11C and 15C.

Île Noire is a dark, rocky reef located near the Château du Taureau in the Baie de Morlaix. This site offers depths ranging from 0 to 21 metres and requires boat access. Divers and snorkellers should be prepared for moderate currents and water temperatures between 11C and 14C, which remain cool throughout the year. Species recorded around this area include crabs, wrasses, squat lobsters, conger eels, flatworms, common lobsters, catsharks, spiny spider crabs, shrimp, sea stars, sea hares, soft corals, abalone, and gray seals. Due to the conditions and depth, this site is suited for advanced divers.

Île Louët is a distinctive rocky islet in the Baie de Morlaix, recognisable by its lighthouse and cottage. The southern cove provides a sheltered environment for snorkelling, characterised by shallow waters and a dense kelp ecosystem. Due to the nature of the site and local conditions, this location is suited for advanced snorkellers. Access is possible from both the shore and by boat. Water temperatures fluctuate throughout the year, ranging from 11C in the winter months to 17C in August. Divers and snorkellers should be prepared for variable conditions typical of this coastal region.