Le Nautilus is a combined reef and wreck site located in Arcachon Bay. The site features a wide depth range extending from 6 to 50 metres, allowing beginners to explore shallower sections while providing technical depths for experienced divers. Visibility typically ranges between 5 and 10 metres, requiring divers to maintain close contact with their buddy. Water temperatures are cool, fluctuating between 10 and 15 degrees Celsius throughout the year, making a drysuit or a thick 7mm wetsuit essential for comfort. Access to the site is by boat only, and divers should verify current forecasts and departure times with their charter operator before planning their dive.

U 263 is a submarine wreck located off the coast of Arcachon Bay. Resting at depths between 29 and 30 metres, this site is suited for intermediate divers with advanced certification. Access is by boat only, with the wreck situated approximately 33 kilometres from the shore. Divers encounter mild currents and visibility ranging from 5 to 15 metres. Water temperatures are cold, fluctuating between 10 and 16 degrees Celsius throughout the year. Due to the depth and the nature of the structure, divers must manage entanglement risks and maintain precise buoyancy control. Thermal protection such as a drysuit or a 7mm wetsuit with hood and gloves is recommended.

The Cristina Rueda is a shallow wreck located 1600 metres offshore in Arcachon Bay, France. Resting at an average depth of 8 metres, with a range of 6 to 10 metres, this site is suitable for beginner divers. Access is by boat only, and the site features mild currents with visibility typically between 5 and 10 metres. Divers should remain aware of the wreck structure to avoid entanglement hazards. Water temperatures fluctuate between 10C and 19C throughout the year. Local facilities provide air fills, equipment rental, and guided tours to assist with navigating the wreck layout.

The Michel is a wreck site situated in Arcachon Bay, resting at depths between 20 and 30 metres with an average of 25 metres. This site is accessible only by boat and is suited for intermediate divers with deep diving experience. Conditions are challenging, characterised by strong currents and visibility ranging from 5 to 10 metres. Divers should be prepared for water temperatures between 10 and 16 degrees Celsius, making a drysuit or thick wetsuit necessary. Due to the wreck structure, there is a risk of entanglement, and divers must maintain good buoyancy control and carry a cutting tool. Slack water timing is essential for a safe dive.

Le Gers is a wreck dive located in Arcachon Bay, resting at depths between 10 and 15 metres. Access to this site is by boat only. Divers encounter mild currents that can strengthen, requiring careful monitoring of conditions and timing dives around slack water. Visibility at the site typically ranges from 5 to 10 metres. Due to the nature of the wreck, there is a risk of entanglement, and divers should maintain distance from structural elements. This site is suited for intermediate divers who possess good buoyancy control. Always keep a surface marker buoy accessible and confirm local conditions before departure.

Le Cap Nord in Arcachon Bay offers a challenging deep-water experience across a mix of reef and wreck terrain. Divers can expect depths between 35 and 45 metres. Due to moderate currents, this site is suited for intermediate divers and is typically explored as a drift dive. Access is strictly by boat, and divers should be prepared for variable visibility of approximately 5 metres. Water temperatures range from 10 to 16 degrees Celsius, necessitating appropriate thermal protection. The site supports a variety of temperate marine life typical of the Atlantic Coast, including reef fish and invertebrates inhabiting the structures.

Plage des Grenettes in Arcachon Bay features a rocky foreshore that extends into submerged reef formations. This shore-entry site is suitable for beginners, with depths ranging from 2 to 5 metres. Divers and snorkellers can explore the rocky topography, which provides a habitat for various reef fish and invertebrates typical of the Atlantic coast. Conditions vary, with visibility between 3 and 10 metres and mild currents. Hazards include surf, rip currents, and sharp rock formations. Facilities at the site include parking and toilets. Typical dives last approximately 30 minutes, and the site is rated 3 out of 5 for snorkelling.

Pointe de Chaucre is a reef site located on the northwestern tip of Oléron in Arcachon Bay. The topography consists of a mix of sand and rocky reefs, with submerged ridges and rock pools accessible at low tide. This site is suitable for beginners, with depths ranging from 1 to 7 metres and an average depth of 4 metres. Shore entry is standard, though divers and snorkellers should be aware of potential hazards including surf, surge, rip currents, and variable visibility between 2 and 8 metres. Water temperatures fluctuate between 10C and 19C throughout the year. Facilities available at the site include parking, toilets, first aid, and a cafe.