Anse du Stole on the Île de Groix is a family-friendly beach that offers accessible snorkelling from the shore. At low tide, the site transforms into a series of shallow rock pools and edges, providing a calm environment suitable for beginners. Water temperatures at this location vary throughout the year, ranging from 10C in February to 18C during the summer months between July and September. The site is well-suited for those looking for a relaxed snorkelling experience in a sheltered coastal setting.

Plage du Pérello on the Île de Groix is a sheltered cove featuring a sandy bottom framed by rocky ridges. This site is suitable for beginners, offering a shallow snorkeling experience with depths ranging from 1 to 10 metres and an average depth of 5 metres. Access is via the shore, and the area experiences mild currents. Visibility typically fluctuates between 5 and 15 metres. Visitors should be aware of potential surf conditions. On-site facilities include parking, toilets, showers, and a rinse station for equipment.

Port Blanc at Kerroc'h is a rocky reef site located on the Île de Groix. This shore entry location features a rugged topography characterised by deep crevices and kelp forests accessible with a short swim. The site is suitable for beginners and offers mild currents. Water temperatures fluctuate between 10C and 18C throughout the year, making wetsuits advisable outside of the summer months. Facilities available at the site include parking, toilets, and showers. Divers and snorkellers should be aware of potential hazards including jellyfish and sea urchins in the area.

The Thuringen is a shallow wreck located off the coast of Île de Groix, France. Resting at depths between 7 and 10 metres, this site is accessible to beginner divers. The environment features mild currents and visibility typically ranging from 5 to 10 metres. Divers can access the wreck via shore or boat, with guided tours available for those seeking local expertise. Due to the nature of the wreck structure, divers should remain cautious of potential entanglement risks from loose cables or netting. Additionally, the area experiences frequent boat traffic, making the use of a surface marker buoy essential for all ascents.

Sperrbrecher 134 is a wreck dive located 800 metres off the coast of Île de Groix, France. The vessel rests at depths between 22 and 25 metres, with an average depth of 22 metres. Access is exclusively by boat charter. Divers encounter mild currents and visibility ranging from 3 to 10 metres. Due to the wreck structure, entanglement is a primary hazard, requiring careful navigation. Water temperatures remain between 10 and 15 degrees Celsius, necessitating a drysuit or a 7mm wetsuit with a hood. Carrying a primary and backup torch is recommended to assist with visibility when exploring the wreck's interior.

Plage des Kaolins on Île de Groix offers a reef environment accessible from the shore. The site features rocky sections at either end of a long sandy stretch, providing varied topography for snorkelers. Depths range from 1 to 15 metres, with an average depth of 5 metres. Conditions include moderate currents and potential surf, requiring intermediate skill levels. Visibility typically spans 5 to 10 metres. Water temperatures fluctuate between 10C and 18C, making cold water shock a consideration for those entering the water. Facilities at the site include parking, toilets, and showers.

Plage des Grands Sables on the Île de Groix is a unique convex beach featuring shifting sands and rocky extremities. Snorkelling is best conducted at the northern and southern ends where the sand transitions into reef habitat. The site is suitable for beginners, with depths ranging from 1 to 6 metres and an average of 3 metres. Access is via the shore, though snorkelers should be aware of moderate currents and surf conditions. Facilities including parking, toilets, and showers are available. Species recorded around this area include European Common Cuttlefish, Gray Seal, Marbled Electric Ray, Conger Eel, wrasses, sea slugs, sea stars, crabs, Tompot Blenny, brittle stars, Spiny Spider Crabs, Rock Crabs, Hermit Crabs, and cod.

Tahiti Beach on Île de Groix is a shallow reef site suitable for beginner divers. The site features a consistent depth of 6 metres and is accessed directly from the shore. Conditions are generally mild, though visibility can vary between 3 and 10 metres. Divers should be prepared for cold water temperatures, which range from 10°C to 17°C throughout the year. Facilities available at the site include parking, showers, and toilets. Due to the low water temperatures, appropriate thermal protection is recommended for all dives.