Hortense is a multi-faceted site in Arcachon, France, featuring artificial riprap, sunken debris, and a drop-off. Located 300 metres from the shore, the site reaches depths between 4 and 25 metres. Entry is via an old boat slipway near the local restaurant. Conditions vary, with moderate currents, potential rip currents, and surf, making it suitable for intermediate divers. Snorkellers can explore the shallower rocky areas, particularly during slack tide. Species recorded around this area include European Common Cuttlefish, Common Octopus, Marbled Electric Ray, Gray Seal, various wrasses, scorpionfish, Conger Eel, crabs, Tompot Blenny, Barrel Jellyfish, Spiny Spider Crab, brittle stars, and sea stars.

La Vigne is a shallow marine dive site located in Arcachon, France. Suitable for beginners, the site offers depths ranging from 3 to 8 metres. Divers can access the water via both shore and boat entries. Conditions are generally manageable, with mild currents and visibility typically between 5 and 10 metres. Water temperatures fluctuate throughout the year, ranging from 12C in the winter months to 21C during August. The site provides a straightforward environment for those looking to gain experience in a coastal setting.

Chez Hortense is a diverse dive site in Arcachon, France, featuring a combination of a wall, an artificial reef, and a wreck. The site offers depths ranging from 10 to 30 metres and requires boat access. Divers navigate variable currents and visibility typically between 4 and 10 metres. The topography includes large rock formations and submerged structures. Species recorded around this area include European Common Cuttlefish, Common Octopus, Marbled Electric Ray, Gray Seal, wrasses, Conger Eel, scorpionfish, crabs, Barrel Jellyfish, Tompot Blenny, Common Sea Star, Spiny Spider Crab, and brittle stars. Water temperatures fluctuate between 12C and 18C throughout the year. Hazards include boat traffic, strong currents, and entanglement risks.

Hortense is a wreck and artificial reef site located near Cap Ferret, offering depths ranging from 1 to 31 metres with an average depth of 30 metres. The site is suitable for intermediate divers and snorkellers, with both boat and shore entry options available. Conditions are characterised by strong currents, making it essential to consult tidal tables and target slack water for your dive. Water temperatures fluctuate between 12 and 18 degrees Celsius, necessitating a thick wetsuit or drysuit. Due to the depth and potential for strong currents, divers should monitor their profiles closely and remain aware of local boat traffic at the surface. Night diving is also permitted at this location.

La Villa Algerienne is located in the village of L'Herbe within Arcachon bay. This site features extensive seagrass meadows stretching from the shoreline out toward the offshore oyster parks. Divers and snorkellers can access the water via the beach situated in front of the historic chapel. The site is suitable for beginners, offering shore access with mild currents. Visibility is consistently recorded at 5 metres. Water temperatures fluctuate throughout the year, ranging from 12C in February and March to 22C in August. The site is well-regarded for snorkelling, providing a shallow environment for exploration.

L Herbe is a shallow dive site located in Arcachon, France, within the Arcachon bay. The site features a combination of seagrass beds and artificial reef structures, offering an average depth of 5 metres with a range between 4 and 8 metres. Access to the site is by boat only. Conditions are generally mild with visibility ranging from 3 to 5 metres. The site is suitable for beginners and supports night diving, with typical dives lasting around 45 minutes. Divers should remain aware of boat traffic and potential entanglement hazards in the area. Facilities including air fills, showers, and rinse stations are available nearby.

Saint Yves in Arcachon, France, offers a combination of reef and wreck diving. The site features a depth range from the surface down to 35 metres, with an average depth of 15 metres. Divers should be prepared for moderate currents and limited visibility, typically between 3 and 5 metres. A dive torch is recommended to assist with navigation and viewing structural details. Water temperatures range from 12C to 18C throughout the year, necessitating appropriate thermal protection. Access to the site is possible via both shore and boat entries. Due to the varying conditions and depth, this site is suitable for beginners, though deeper sections require more advanced experience.

The Perle wreck is a dive site located in Arcachon, France, resting at a depth of 18 to 19 metres. This site is accessed by boat and features a moderate current, requiring divers to plan their air consumption and buoyancy carefully. Visibility is typically limited to 5 metres, providing an intimate view of the wreck structure rather than wide-angle perspectives. Due to the current and depth, divers should coordinate with local boat charters for site-specific briefings before entry. Water temperatures fluctuate throughout the year, ranging from 12C in the winter months to 20C in late summer.