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.

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.

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.

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.

Le Saint Yves is a boat-accessible dive site located in Arcachon Bay, France. The site features depths ranging from 40 to 45 metres, making it suitable for experienced divers. Conditions are variable, with visibility typically between 5 and 10 metres and mild currents. Water temperatures fluctuate throughout the year, ranging from 10C in the winter months to 15C during the summer. Species recorded around this area include crabs, sea stars, and various snails. Divers should be prepared for temperate marine conditions and plan their dives according to the specific depth and environmental factors present at this location.

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.

Rocher d'Antioche is a substantial offshore rocky plateau located 1700 metres from the shore in Arcachon Bay. This site features a combination of reef topography and wreck remains, with depths ranging from 8 to 14 metres and an average depth of 11 metres. Due to its exposed location, the site is subject to strong currents, surge, and surf, requiring boat access and careful planning around slack water. Conditions are variable, and the site is suited for advanced divers. Water temperatures fluctuate between 10C and 20C throughout the year. Divers and snorkellers should be aware of potential hazards including cold water, entanglement risks, and strong currents.