Port-Maguide, located at Cap Ferret, offers a combination of natural and artificial reef structures. This freshwater site provides varied topography across a depth range of 3 to 30 metres, with an average depth of 15 metres. Divers can expect mild currents and visibility typically between 10 and 20 metres. Due to the nature of the site, boat access is required. Water temperatures fluctuate between 12 and 18 degrees Celsius throughout the year, necessitating appropriate thermal protection. The site is suited for intermediate divers, with typical dives lasting around 45 minutes. Arrange charters in advance and confirm local launch conditions before departure.

Losa Archaeological Site is a submerged historical location situated near Cap Ferret. The site features the ruins of a sunken Roman village, with primary structures located at depths of 14 to 16 metres. Shallower Iron Age remains are also present within the ancient riverbed of the Gourgue. Due to the depth of the main ruins and variable visibility, this site is suited for advanced snorkellers and divers. Access to the site is by boat. Water temperatures in the area fluctuate throughout the year, ranging from 12C in the winter months to 22C during the peak of summer.

Port-Maguide is a freshwater wreck site located near Cazaux-Biscarrosse. Offering a straightforward shore entry with no current, the site is suitable for beginners. Depths range from 1 to 18 metres, with an average of 10 metres. Visibility is variable, typically between 5 and 10 metres, and divers should be prepared for low visibility conditions. The site features a wreck structure that supports various temperate freshwater fish and invertebrates. Facilities available on-site include parking, toilets, showers, and first aid. Divers are advised to carry a torch to assist with navigation and detail observation due to the changing visibility.

Les Blockhaus at Cap Ferret consists of submerged wartime concrete structures that now function as an artificial reef. This site is suitable for intermediate divers, with depths ranging from 6 to 20 metres and an average depth of 17 metres. Divers may encounter moderate currents, requiring careful planning around slack water. Visibility typically spans 5 to 10 metres. Entry can be made by boat or from the shore, though shore entries require caution due to unpredictable surf and shore breaks. Water temperatures fluctuate between 12 and 18 degrees Celsius throughout the year, necessitating appropriate thermal protection. Night diving is permitted at this location.

Le Chariot is a wreck and artificial reef located 3000 metres off the coast of Cap Ferret. The site sits at depths ranging from 20 to 41 metres, with an average depth of 30 metres. Access is strictly by boat, and divers must be prepared for variable currents that require careful planning around tidal tables. Due to the significant depth and potential for strong currents, this site is suited for intermediate divers. Species recorded around this area include European Common Cuttlefish, Common Octopus, wrasses, scorpionfish, conger eels, crabs, Tompot Blenny, Barrel Jellyfish, brittle stars, Common Sea Stars, Spiny Spider Crabs, snails, sea squirts, and sea cucumbers.

Le Caméléon is a wreck site located off the coast of Cap Ferret, France, serving as an artificial reef. The site sits at depths between 22 and 26 metres, with an average depth of 23 metres. Divers access the wreck by boat, as it lies approximately 19 kilometres from shore. Conditions include a moderate current and visibility consistently around 5 metres, making a torch useful for exploring the structure. Water temperatures fluctuate between 12 and 18 degrees Celsius throughout the year. Due to the depth and current, this site is suitable for intermediate divers. Species recorded around this area include European Common Cuttlefish, Common Octopus, Conger Eel, and various crabs.

Plage de Caton at Cap Ferret is a freshwater site featuring a sandy lake bed interspersed with seagrass. This location is suitable for beginners, offering shallow depths ranging from 1 to 5 metres with an average of 3 metres. Snorkellers can expect mild currents and visibility between 5 and 10 metres. Access is via the shore, and the site is well-equipped with facilities including parking, toilets, showers, and equipment rental. Due to the presence of boat traffic, visitors should remain vigilant while in the water. The site provides a relaxed environment for underwater exploration in a protected natural area.

Banc d'Arguin is a national nature reserve sandbank situated at the mouth of the Arcachon bay near Cap Ferret. This site is accessible exclusively by boat or water taxi from Arcachon or Cap Ferret. Snorkelling is best performed on the interior side of the bank, where the water remains calmer. Conditions vary, with water temperatures ranging from 12C in winter to 22C in August. Species recorded around this area include European Common Cuttlefish, Common Octopus, Gray Seal, Scorpionfish, Conger Eel, various wrasses, Barrel Jellyfish, Tompot Blenny, crabs, sea stars, and Striped Red Mullet. This site is suitable for intermediate snorkellers.