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.

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.

Marco Polo III is a reef site located off the Crozon Peninsula, accessible only by boat. The site sits at a depth of 27 to 30 metres, requiring divers to hold an appropriate certification for these depths. Conditions include a moderate current and visibility typically ranging between 5 and 10 metres. Water temperatures are cool, fluctuating between 11 and 13 degrees Celsius throughout the year, making a drysuit or thick wetsuit necessary for thermal protection. Divers should plan their profiles to work with the current and monitor air consumption closely due to the cold water environment.

The Swansea Vale is a wreck site located 4000 metres off the Crozon Peninsula, resting at depths between 28 and 31 metres. This intermediate-level dive requires boat access and is characterised by strong currents, making it essential to time descents around slack water. Visibility typically ranges from 5 to 10 metres. Divers should maintain strict buoyancy control and remain aware of potential entanglement hazards within the wreck structure. Due to the significant depth and current conditions, careful dive planning is necessary for this 41-minute average dive. Water temperatures remain cool throughout the year, ranging from 11C to 13C.

Canons Santa Rosa is a shallow wreck site located in the Molène Archipelago, France. Resting at depths between 6 and 10 metres, the site is suitable for beginner divers. Access is exclusively by boat, situated 4500 metres from the shore. Visibility at the site varies from 5 to 20 metres. Divers should note the overhead environment hazard and avoid penetrating the wreck or entering swim-through sections without appropriate training. Water temperatures range from 11 to 15 degrees Celsius throughout the year, necessitating a well-fitted wetsuit of at least 5mm. The site offers a relaxed pace for exploring the structure of the wreck.

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.

Tombant du Belge is a challenging wall dive located off the Crozon Peninsula, featuring a steep drop-off that descends from 25 to 51 metres. Due to the offshore location and strong currents, this site is strictly for intermediate to advanced divers and requires boat access. Divers should anticipate visibility between 5 and 10 metres, necessitating close-up inspection of the wall structure. Water temperatures remain cool, ranging from 10 to 12 degrees Celsius throughout the year, making a drysuit or thick wetsuit essential. Given the significant depths, divers must maintain strict awareness of nitrogen narcosis and time their entry to coincide with slack water to manage the powerful currents.