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, 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.

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.

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.

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.

Fosse la Teste is an artificial reef located off the Atlantic Coast of France. Accessible from the shore, the site features a structure that descends from 1 to 20 metres, providing a progression for divers of varying experience levels. Conditions are generally manageable with mild currents and visibility typically ranging between 15 and 20 metres. Water temperatures fluctuate between 12 and 18 degrees Celsius throughout the year, necessitating a 5 to 7 mm wetsuit. On-site facilities include changing rooms, showers, and air fills, allowing for multiple dives without returning to town. Divers should monitor their depth gauge closely to manage the 20-metre maximum depth.

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 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.