Le Voilier de Plane is a wreck dive located off the coast of the Île de Riou. The site sits at a constant depth of 33 metres, requiring boat access and intermediate diving skills. Divers should be prepared for moderate currents, which necessitate careful planning of descent and bottom time. Visibility at the site ranges from 10 to 30 metres depending on seasonal conditions. Water temperatures fluctuate between 13 and 20 degrees Celsius throughout the year. Due to the depth and potential for cooler water, a thick wetsuit or drysuit is recommended, particularly outside of the summer months.

Les Moyadons is a wall and reef site located off the Île de Riou. The topography features a wall dropping to a maximum depth of 37 metres, with shallower reef sections starting above 10 metres. Divers can expect visibility ranging from 10 to 30 metres. This site requires boat access and is suited for intermediate divers due to moderate currents that can strengthen without warning. Water temperatures fluctuate between 14C and 19C throughout the year. Divers should exercise caution to avoid contact with sharp coral and rock edges along the wall. Planning dives to work against the current during the initial phase is recommended.

Grotte à Pérez, located off the Île de Riou, offers a combination of open reef and cave diving. The site features a depth range of 7 to 40 metres, with an average depth of 25 metres. Divers navigate an overhead environment within the cave system, where visibility typically ranges from 10 to 30 metres. Conditions are generally manageable with mild currents, though the cave structure presents risks of entanglement and sharp rock surfaces. Access is strictly by boat. Due to the technical nature of the cave, this site is suited for intermediate divers holding appropriate cave certification in addition to their open-water qualification.

Les Pierres à Joseph is a reef and drop-off site located off the Île de Riou. The topography descends from 1 to 20 metres, with an average depth of 15 metres. Divers can expect visibility between 10 and 30 metres. Marine life includes very common wrasses and common scorpionfish. Less frequently, divers may encounter great barracuda, Mediterranean moray, conger eel, and various invertebrates such as flatworms, cow snails, and nudibranchs like the tricolor doris. Due to strong currents, this site requires boat access and is best suited for divers who remain close to their guide. Water temperatures range from 14 to 20 degrees Celsius throughout the year.

Le Cap Plane, located at Île de Riou, offers a diverse underwater landscape featuring reefs, caves, caverns, and canyons. With depths ranging from 6 to 20 metres and an average of 13 metres, the site is suitable for beginners. Visibility is excellent, typically between 10 and 30 metres. Access is by boat only, and the mild currents make it manageable for newer divers. The site includes overhead environments, so proper buoyancy control is essential. Water temperatures fluctuate between 14C and 21C throughout the year. Night diving is permitted, and divers should carry a torch when exploring the cave and cavern sections.

Tombant Jean Joseph is a boat-access dive site located at Île de Riou, featuring a complex topography of reefs, a drop-off, and a canyon. The site ranges in depth from 10 to 40 metres, with an average depth of 25 metres. Divers must be prepared for strong currents, which are a defining characteristic of this location and require precise timing and solid buoyancy control. Visibility typically fluctuates between 10 and 30 metres. Due to the significant current, all entries and exits must be performed directly from the boat. This site is suited for intermediate divers who can manage variable conditions in an open water environment.

La Donatello D is a reef and wall site located off the Île de Riou, offering a shallow profile between 9 and 12 metres. This site is well-suited for beginner divers due to the manageable depths and generally calm conditions. Visibility typically ranges from 10 to 30 metres, providing clear sight lines along the reef structure. Access to the site is exclusively by boat, and divers must remain vigilant regarding boat traffic when surfacing. A surface marker buoy is recommended for all ascents. Water temperatures fluctuate between 14 and 23 degrees Celsius throughout the year, necessitating appropriate thermal protection during cooler months.

Iles des Moyades is a marine site located at Île de Riou, featuring a varied topography of reefs, walls, and canyons. The site reaches depths between 5 and 45 metres and is accessible only by boat. Divers and snorkellers can expect mild currents and visibility ranging from 10 to 25 metres. Water temperatures fluctuate between 13C and 18C throughout the year. Due to the presence of surf, appropriate caution is advised during entry and exit. Typical dives at this location last approximately 45 minutes.