Calanque de Maupas on Île Saint-Honorat offers a snorkel experience over a seabed composed of Posidonia seagrass and white sand. The site features depths ranging from 10 to 40 metres, with an average depth of 8 metres. Snorkellers access the water directly from the shore. Conditions are variable, with visibility typically between 5 and 15 metres and mild currents. The site is suited for intermediate snorkellers. Hazards include sea urchins and sharp coral. Species recorded around this area include Mediterranean Moray, Common Octopus, European Common Cuttlefish, Splendid Elysia, Turkish Wrasse, Scorpionfish, various wrasses, Cow Snail, Cratena Slug, flatworms, Giant Doris, Mediterranean Violet Aeolid, Tricolor Doris, and Tompot Blenny.

Tombant des Allemands is a reef drop-off located off Île Saint-Honorat that descends to depths between 55 and 65 metres. This site is suited for intermediate divers who possess strong buoyancy control and air management skills. Visibility typically ranges from 10 to 30 metres, allowing for clear views of the wall structure. Water temperatures fluctuate between 13 and 19 degrees Celsius throughout the year, requiring appropriate thermal protection. Access to the site is by boat only. Divers should be aware of mild currents that can occasionally strengthen, as well as potential surf and shore break conditions that may affect boat embarkation and disembarkation.

Calanque du Petit Caneiret on Île Saint-Honorat is a sheltered reef site accessed via a 100-step stone staircase. The cove is framed by high red cliffs, creating a protected environment suitable for beginners. Snorkellers can observe a variety of marine life, including snails, which are very common, particularly in May and June. Other species recorded at the site include wrasses, salema porgy, bream, and hard coral. Nudibranchs such as the Splendid Elysia, Cratena Slug, and Mediterranean Violet Aeolid are occasionally present, alongside sea hares and mauve stingers. Water temperatures fluctuate between 14C and 26C throughout the year, and currents are generally mild. Toilets are available at the site.

Esterel is a shore-entry reef dive located off the coast of Île Saint-Honorat. The site features shallow, calm conditions suitable for beginner divers to practice in open water. Water temperatures fluctuate throughout the year, ranging from 14C in winter to 26C in August. Visibility and currents are variable, so it is recommended to check local weather and sea-state forecasts before entering the water. As facilities are not confirmed on site, divers should arrive fully prepared with all necessary equipment. The habitat supports a variety of Mediterranean reef fish and invertebrates, though specific sightings are not guaranteed.

Les Portes de l'Atlantide is a deep-water reef and wall site located off the coast of Île Saint-Honorat. The topography features a vertical wall structure that descends from 30 to 40 metres, offering clear views of the relief due to consistent 30-metre visibility. This site is strictly for advanced divers given the depth profile. Water temperatures fluctuate between 13 and 20 degrees Celsius, necessitating appropriate thermal protection. Boat access is required, and surface marker buoys are essential due to the risk of boat traffic. Divers should remain close to the shot line during ascent to ensure visibility to vessel crews.

Aiguilles de Tayat is a pinnacle and reef site located off Île Saint-Honorat. The topography features a wide depth range, starting at 10 metres and descending to 42 metres. Visibility is consistently 30 metres, allowing for clear observation of the reef structure. Divers regularly encounter Mediterranean Moray, wrasses, Turkish Wrasse, scorpionfish, Painted Comber, Tompot Blenny, White Seabream, sea stars, castagnole, bream, Mediterranean Cardinalfish, snails, mullet, and Salema Porgy. Water temperatures fluctuate between 13C and 20C throughout the year. Access is strictly by boat, requiring careful planning of bottom time and gas management. Due to the depth and potential for boat traffic, this site is suited for intermediate divers.

La Roche d'Aurelle is a reef and drop-off site located off the coast of Île Saint-Honorat. The topography features an emerging rock formation that descends to a depth of 37 metres, with the site ranging between 16 and 39 metres. Divers can observe Mediterranean Moray, scorpionfish, and various wrasses including the Turkish Wrasse. Other species present include Tompot Blenny, Painted Comber, White Seabream, Castagnole, sea stars, bream, Mediterranean Cardinalfish, snails, mullet, and Salema Porgy. Access is by boat only, and the site is suited for intermediate divers due to the potential for strong currents, though conditions are generally mild.

Calanque des Anglais on Île Saint-Honorat consists of three small pebble coves. The site features underwater caves and large boulders, creating a complex topography for snorkellers to explore. Entry is via the shore. Water temperatures vary significantly throughout the year, ranging from 14C in winter to 26C in August. Due to the presence of sharp coral and jellyfish, snorkellers should exercise caution. This site is rated 4 out of 5 for snorkelling and is best suited for intermediate participants.