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.

Plage de Laouga in Cap Ferret is a shallow reef site located on the northern shore of the lake. Sheltered by surrounding pine forests, the area features fine white sand and shallow weed beds. Divers and snorkellers can expect depths ranging from 1 to 7 metres, with an average depth of 4 metres. Conditions are generally calm with mild currents and visibility typically between 5 and 10 metres. This site is suitable for beginners and offers shore access. Water temperatures fluctuate throughout the year, ranging from 12C in winter to 22C in August. Facilities including parking, toilets, and a cafe are available nearby.

Plage de Navarrosse is a shallow freshwater site located in Cap Ferret, France. The area is notable for its consistent depth of approximately one metre, extending up to 100 metres from the shore. This layout makes it a suitable location for beginners and children to practice snorkeling. The site features seagrass beds and experiences mild currents. Water temperatures vary throughout the year, ranging from 12C in winter to 22C in summer, with warmer conditions often reported during the summer months. Shore access is available, and the site is equipped with parking, toilets, and showers. Typical snorkeling sessions last around 60 minutes.

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 Taigetos is a deep wreck site located off the coast of Cap Ferret. The wreck lies at depths ranging between 68 and 80 metres, making this an advanced technical dive. Access is exclusively by boat. Conditions at this site are variable, with visibility typically ranging from 10 to 30 metres and currents generally described as mild. Water temperatures fluctuate throughout the year, reaching a low of 12C in winter and a high of 17C during the autumn months. Due to the significant depth of the wreck, this site is suitable only for experienced technical divers with appropriate training and equipment.

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.

Port-Maguide at Biscarrosse Lac offers a freshwater snorkeling experience with a sandy bottom and visibility ranging from 5 to 15 metres. The site features a long wooden deck for shore entry, making it accessible for beginners. Depths vary between 1 and 20 metres, with an average depth of 5 metres. Conditions are generally mild, though water temperatures fluctuate seasonally between 12C and 22C. The habitat supports various temperate freshwater fish and invertebrates typical of the region. This site is well-suited for those seeking a calm, shallow environment for snorkelling.