

Best for beginner divers, shore entry, mild current.
Plage de la Grande Mer is the main town beach in Cassis, offering shore access to a reef environment. The site features rocky breakwaters at the ends of the beach that provide structure for marine life. Conditions are generally suitable for beginners, though divers and snorkellers should be aware of potential surf and boat traffic in the area. Water temperatures vary throughout the year, ranging from 14C in winter to 24C in August, with occasional cold water reported in late July. Facilities available at the beach include parking, toilets, showers, changing rooms, and a rinse station. The site is rated 2/5 for snorkelling.
43.21220, 5.53822
Book your diving experience in advance, especially during peak season, to ensure availability.
The diving center is located at 3 Rue Michel Arnaud, 30 meters from the port of Cassis.
Recorded at this site
Skill Level
Beginner
Entry
Shore
Water Temp
14-24°C
Current
Mild
Best Time
Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Yes, the site is suitable for beginners.
Access to the water is via the shore.
Yes, the site is used for both diving and snorkelling, with a snorkel rating of 2/5.
Divers and snorkellers should be cautious of boat traffic and surf conditions.
A 7mm wetsuit or semi-dry is recommended for diving at Plage de la Grande Mer in Cassis. Water temperatures range from 14°C to 24°C.
The best months to visit Plage de la Grande Mer in Cassis are April, May, June, July, August, September, October, and November. Conditions outside these months can still be good but are less predictable.
Plage de la Grande Mer in Cassis typically has mild currents that most divers can handle comfortably.