Baliseur is a challenging wreck and reef site in the Molène Archipelago, offering depths ranging from 5 to 45 metres. The site features a wreck structure combined with surrounding reef formations. Divers must be prepared for strong currents, which require precise timing relative to the tidal window. Visibility is consistently 30 metres. Due to the cold water temperatures of 10 to 12 degrees Celsius and the technical nature of the site, a drysuit is recommended. Access is strictly by boat, and the site is reserved for advanced divers with deep diving certifications. Divers should be aware of potential surf and sharp rock formations when planning their entry.

Plage de Porz Liogan in the Molène Archipelago is a sheltered beach featuring rocky outcrops on either side of a sandy area. This site is suitable for beginners and offers shore access for snorkellers. Conditions are variable, with visibility typically ranging between 3 and 10 metres. Water temperatures are cool, fluctuating between 11C and 16C throughout the year, and rarely exceeding 15C. Facilities at the site include parking and toilets. Due to the nature of the environment, snorkellers should be aware of potential hazards including cold water, sea urchins, and rip currents.

Fort de Bertheaume features rocky foundations and steep underwater drop-offs located within the Molène Archipelago. The site is characterised by kelp forests and is sheltered from northern winds, making it suitable for beginners. Snorkellers can access the site directly from the shore, with the main area located approximately 30 metres out. Water temperatures range from 11C in winter to 16C during the summer months. A cafe is available on-site for visitors. Due to the rocky nature of the terrain, care should be taken when entering and exiting the water.

The Marco Polo I is a wreck dive located in the Molène Archipelago, resting at a depth of 28 metres. This site is suitable for intermediate divers who are comfortable with deeper water and moderate currents. Visibility typically ranges between 5 and 10 metres, and water temperatures remain between 11 and 13 degrees Celsius throughout the year, necessitating appropriate thermal protection. Access is by boat only. Divers should be aware of potential entanglement hazards within the wreck structure and plan their bottom time carefully around slack water. A cutting tool and a torch are recommended for those exploring the wreck.

Plage des Blancs Sablons in the Molène Archipelago features a rocky northern tip near the Kermorvan Peninsula. The site offers varied underwater topography consisting of boulders interspersed with sandy patches. With depths ranging from 1 to 8 metres and an average of 4 metres, it is best explored at low tide when conditions are calm. Access is via the shore, though snorkellers should be prepared for moderate currents, surf, and cool water temperatures between 11C and 16C. Due to these environmental factors, the site is suited for intermediate snorkellers. Facilities including parking, showers, and equipment rental are available nearby.

The War Balloon is a wreck site situated in the Molène Archipelago, France, resting at depths between 25 and 28 metres. Access is exclusively by boat, with the site located approximately 9630 metres from the shore. Divers encounter strong currents, making it essential to plan dives around slack water to ensure safety. Visibility typically ranges from 10 to 20 metres but remains variable. Due to the depth and potential for entanglement within the wreck structure, this site is suited for intermediate divers. A typical dive duration is 40 minutes. Divers should carry a cutting tool and monitor their positioning closely while exploring the hull.

The Marco Polo II is a wreck dive located off the Crozon Peninsula, resting at depths between 28 and 30 metres. This site requires boat access and is suited for intermediate divers due to the depth and the presence of moderate currents. Visibility typically ranges from 5 to 10 metres, making a torch useful for inspecting the structure. Water temperatures remain between 11 and 14 degrees Celsius throughout the year, necessitating a drysuit or thick wetsuit. Divers should monitor conditions closely, as currents can strengthen quickly; timing dives around slack water is recommended. Ensure all air fills and equipment are prepared in Brest before departure.

Plage d'Illien Cove in the Molène Archipelago is a narrow sandy cove framed by high rocky cliffs. The site features shallow rocky reefs extending from the beach, providing a protected environment for snorkelling. Depths range from 2 to 8 metres, with an average of 5 metres, making it suitable for beginners. Access is via the shore, and the site offers mild currents. Visibility varies, and water temperatures typically range between 11C and 16C, necessitating the use of a wetsuit. Parking is available nearby. Typical snorkelling sessions last around 30 minutes.