Plage de la Cible in Arcachon Bay offers a shallow reef environment suitable for beginners. The site features a long pontoon and submerged rocky structures that are best explored at high tide when the water covers the oyster-encrusted rocks. Depths range from 1 to 10 metres, with an average of 5 metres. Access is via the shore, and facilities including parking, toilets, and showers are available nearby. Divers and snorkellers should be aware of potential hazards, including surf and sharp oyster-encrusted rocks. Water temperatures fluctuate between 10C and 20C throughout the year.

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.

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.

Petit Bec is a rocky reef site located at the northern tip of the island near Les Portes-en-Ré in Arcachon Bay. This shore-entry site is suitable for intermediate divers, with depths ranging from 1 to 5 metres and an average of 3 metres. Divers should be aware of potential hazards including rip currents, strong currents, surf, and entanglement. Visibility varies between 3 and 10 metres. Species recorded around this area include crabs, sea hares, sea stars, spiny spider crabs, shrimp, snails, shannies, and sea squirts. The site offers basic facilities including parking, showers, changing rooms, and first aid, with a dive shop nearby.

Plage des Grenettes in Arcachon Bay features ancient stone fish locks that function as artificial reefs. These structures provide a unique topography for snorkelers to explore at depths ranging from 2 to 8 metres, with an average depth of 5 metres. Snorkeling is most effective at high tide when the water covers the stone formations. The site is accessed directly from the shore and is suited for intermediate snorkelers. Divers and snorkelers should be aware of potential hazards including surge and sharp coral structures. Facilities available at the site include parking and toilets. Water temperatures fluctuate between 10C and 20C throughout the year.

Conche des Baleines, also known as Lighthouse Rocks, is located at the western tip of the beach near the Phare des Baleines. The site is characterised by rugged limestone formations, including tide pools and submerged ledges. This shore-entry location is suitable for beginners and offers a snorkel rating of 3 out of 5. Water temperatures at this Atlantic Coast site vary throughout the year, ranging from 10C in the winter months to 20C during the peak summer period of July and August. Divers and snorkellers should be prepared for these seasonal fluctuations in temperature when planning their visit to this coastal area.

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.

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.