L'interdite is a shore-entry reef site located at Cap Ferrat, France. The site features shallow waters that are suitable for beginners and snorkellers. Divers and snorkellers can observe a variety of marine life including common wrasses, bream, white seabream, and sea stars. Less frequently encountered species include Mediterranean moray, scorpionfish, cratena slug, cow snail, castagnole, painted comber, Mediterranean cardinalfish, tube worms, crabs, and tompot blenny. Water temperatures fluctuate between 14C and 26C throughout the year. Visibility at this site is variable and depends on local weather and swell conditions. Divers should check conditions locally before entering the water and consider using at least a 5mm wetsuit outside of the summer months.

Crau de Nao at Cap Ferrat features a complex underwater topography consisting of a reef, wall, drop-off, and cave system. The site begins at 6 metres and descends to a maximum depth of 50 metres, with an average depth of 35 metres. Due to the depth and overhead environments, this site is suited for intermediate and advanced divers. Moderate currents are common, and visibility typically ranges between 5 and 10 metres. Access is by boat, located 4000 metres from the shore. Divers must be aware of heavy boat traffic and surf conditions at the surface. Proper training is required for cave penetration.

Grotte du Sémaphore at Cap Ferrat offers a diverse underwater landscape featuring a cave, a drop-off, and a reef. Reaching depths between 9 and 40 metres, the site is accessible to beginners who should remain in the shallower sections. Divers encounter various marine life, including common wrasses, scorpionfish, white seabream, and sea stars. Less frequently, observers record Mediterranean moray, lefteye flounder, gurnard, and various nudibranchs like the Cratena slug. The site requires boat access and presents mild currents with visibility ranging from 10 to 30 metres. Due to the overhead cave environment, maintaining buoyancy control is essential. Guided tours are recommended to navigate the layout safely while avoiding contact with the reef and cave walls.

Les escaliers is a reef site located at Cap Ferrat on the French Riviera. Accessible only by boat, this site features shallow, calm waters that provide a comfortable environment for beginners building confidence underwater. Water temperatures fluctuate between 14C in winter and 26C in summer, requiring a wetsuit appropriate for the season. Visibility can vary significantly depending on recent weather and seasonal conditions. Divers and snorkellers should arrange equipment hire and air fills through their boat operator in advance, as no facilities are confirmed at the site. Always check locally for current sea conditions and visibility before departure.

Le tombant de Villefranche is a wall dive located at Cap Ferrat, featuring a drop-off that descends from 5 metres to 45 metres. The site includes a reef and a cave, with visibility ranging from 10 to 30 metres. Divers frequently encounter wrasses, scorpionfish, white seabream, and sea stars. Less common sightings include Mediterranean moray, European common cuttlefish, gurnard, and various nudibranchs like the splendid elysia and cratena slug. The site is suitable for beginners, though boat traffic requires vigilance during surfacing. Guided tours are available, and a wetsuit is recommended due to water temperatures between 13 and 20 degrees Celsius.

Le Cap Ferrat features diverse underwater terrain, ranging from shallow reefs at 1 metre to a drop-off reaching 42 metres. The site includes a cave and overhead environments, requiring specific training for safe exploration. Conditions are generally manageable with mild currents, though visibility can be variable. Divers and snorkellers can access the site via shore or boat. Facilities include parking, air fills, equipment rental, and guided tours. Species recorded around this area include wrasses, scorpionfish, various nudibranchs such as the Cratena slug, and occasionally Mediterranean moray or common octopus. Night diving is available for experienced divers. Always check current conditions with the local dive shop before planning your visit.

Grande Baie at Cap Ferrat offers a diverse underwater landscape featuring a reef, wall, cave, and drop-off, alongside an artificial reef. Suitable for beginners, the site reaches depths between 2 and 60 metres with visibility ranging from 10 to 25 metres. Divers can encounter common species such as wrasses, scorpionfish, sea stars, and white seabream. Less frequently, the site hosts Mediterranean moray, European common cuttlefish, Turkish wrasse, lefteye flounder, gurnard, splendid elysia, cow snails, cratena slugs, tube worms, and brittle stars. Entry is possible from both shore and boat, with mild currents typically present. Water temperatures fluctuate between 13C and 19C throughout the year.

Vallée des Gorgones is a reef, wall, and drop-off site located off Cap Ferrat. The terrain extends from 5 metres to a maximum depth of 45 metres, with an average depth of 35 metres. This site requires boat access and is suited for intermediate divers. Conditions include mild currents, though surge and variable visibility between 10 and 30 metres can occur. Divers should be prepared for thermoclines, particularly around 20 metres, and water temperatures ranging from 13 to 20 degrees Celsius. Due to the significant depth, careful monitoring of bottom time and nitrogen narcosis risk is essential during the typical 46-minute dive.