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.

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.

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.

Tombant André is a wall and drop-off site located 100 metres off the coast of Cap Ferrat. The site features a vertical structure descending from 20 metres to a maximum depth of 43 metres, with an average depth of 35 metres. Divers must access the site by boat. Conditions include moderate currents and visibility ranging from 5 to 25 metres. Water temperatures fluctuate between 13C and 21C throughout the year, necessitating appropriate thermal protection. Given the significant depth and potential for rapid descent along the wall, this site is suited for intermediate divers who can manage gas consumption and monitor their dive computers closely.

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.

Pointe Caussinière at Cap Ferrat features a varied topography consisting of a reef, wall, and drop-off. The site is suitable for intermediate divers, with depths ranging from 3 to 45 metres and an average depth of 35 metres. Access is strictly by boat. Conditions are variable, with visibility typically between 10 and 25 metres and mild currents. Water temperatures fluctuate throughout the year, ranging from 14C in the winter months to 21C during the summer. Divers and snorkellers should remain aware of boat traffic in the area, as well as potential surf and currents.

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.

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.