Port Jean is a narrow, rocky cove located on the north coast of Belle-Île-en-Mer, France. This site offers protection from most winds, making it a suitable location for beginners. Divers and snorkellers can explore the rocky edges at depths ranging from 2 to 8 metres, with an average depth of 5 metres. Access is via the shore, and conditions include mild currents and visibility between 3 and 10 metres. Water temperatures fluctuate between 10C and 18C throughout the year, though the water can feel warmer at high tide. Facilities available at the site include parking, showers, and toilets. Typical dives last approximately 45 minutes.

El Houalerez is a reef site located near Houat and Hoëdic in the Morbihan gulf. The site is suitable for beginner divers, offering depths between 16 and 21 metres. Divers can expect mild currents and visibility ranging from 10 to 30 metres. Water temperatures fluctuate between 10 and 17 degrees Celsius, necessitating appropriate thermal protection. Access to the site is by boat only. Due to the presence of boat traffic, divers must maintain awareness at all times when surfacing and are required to deploy a surface marker buoy to ensure visibility to nearby vessels.

Plage de Port Fouquet is a wide, deep cove situated on Belle-Île-en-Mer. The site features a flat sandy bottom that transitions into rocky reefs along the sides, interspersed with areas of seagrass. With depths ranging from 1 to 8 metres and an average of 4 metres, it is well-suited for beginners. Snorkellers can expect mild currents and visibility typically between 5 and 15 metres. Access is via the shore, and the site is equipped with parking, showers, and toilets. The location provides a sheltered environment for exploring the varied underwater topography of the Morbihan Islands.

Plage de Bordardoué on Belle-Île-en-Mer is a shore-entry site featuring rocky reef formations. Located near Le Palais, the beach is suitable for beginners interested in snorkelling. The topography includes rocky areas on the left side of the beach, which are accessible for observing intertidal life. Water temperatures remain cool throughout the year, ranging from 10C in winter to 19C in August. Divers and snorkellers should be aware of moderate currents and surf conditions. Parking facilities are available for visitors. This site provides a straightforward entry point for those exploring the coastal geology of the Morbihan Islands.

Le Grand Coin, located off the coast of Houat and Hoëdic, offers a combination of reef and drop-off topography. The site features a wall that provides structural interest, with depths ranging between 18 and 21 metres. Divers should expect mild currents and visibility typically between 5 and 10 metres, requiring confident buoyancy control. Due to water temperatures ranging from 10 to 16 degrees Celsius, a 7mm wetsuit with a hood and gloves or a drysuit is recommended. Access to this site is exclusively by boat, situated approximately 1000 metres from the shore.

Men er Broc is a reef and wall site located near Houat and Hoëdic, France. Divers explore a compact depth range of 15 to 17 metres. Access is strictly by boat, and the site requires intermediate skill due to variable conditions. Visibility typically ranges from 5 to 10 metres, and water temperatures fluctuate between 10C and 17C throughout the year. While currents at the site are generally mild, the surrounding area is subject to strong tidal flows from the Morbihan gulf. Divers should monitor local boat traffic and use a surface marker buoy during ascents. Appropriate thermal protection is recommended for the cooler water temperatures.

Men Porz Plouz is a boat-access reef site located near Houat and Hoëdic. Divers can explore the reef structure at depths between 10 and 15 metres. The site features mild currents, providing a relaxed environment for underwater exploration. Visibility typically ranges from 5 to 10 metres. Water temperatures fluctuate between 10 and 17 degrees Celsius throughout the year, requiring appropriate thermal protection such as a 7mm wetsuit or drysuit. Given the moderate depth and manageable conditions, this site is suitable for newly qualified divers looking to build confidence on reef terrain.

The France Wreck is a structure resting at depths between 17 and 25 metres, with an average depth of 20 metres. Located near Houat and Hoëdic, this site requires boat access. Divers experience moderate currents and visibility ranging from 5 to 10 metres. Water temperatures are cool, fluctuating between 10 and 15 degrees Celsius throughout the year, necessitating appropriate thermal protection. The wreck provides an opportunity for beginner divers to explore a submerged structure. Divers should remain aware of boat traffic during ascents and exercise caution around the wreck to avoid contact with sharp edges. Species recorded around this area include wrasses, flatworms, nudibranchs, crabs, sea stars, snails, and sea squirts.