

Best for beginner divers, 6-26m, shore entry, mild current.
Charpignat is a freshwater artificial reef located in Annecy-le-Vieux, France. Accessible directly from the shore, the site features depths ranging from 6 to 26 metres, with an average depth of 15 metres. Conditions are generally mild, with visibility varying between 5 and 20 metres. Divers should be prepared for a significant thermocline, as temperatures drop sharply below 10 metres. The site is suitable for beginners, though careful monitoring of depth and thermal protection is required due to the cold water. Parking is available on-site, and the location supports both day and night diving. Typical dives last approximately 45 minutes.
45.66370, 5.85860
Come prepared for cold water regardless of the season, as Alpine freshwater stays cool at depth even in summer, so a good wetsuit or drysuit is essential. Parking is available on site, making it easy to manage heavy gear.
Located on the east bank of Lac du Bourget in Le Bourget-du-Lac. Accessible by car via RD 1504 from Chambery or Aix-les-Bains.
Recorded at this site
Depth
6-26m
Visibility
5-20m
Skill Level
Beginner
Entry
Shore
Current
Mild
Typical Dive
45 min
Yes, the site is suitable for beginners, who can explore the shallower sections of the artificial reef to build confidence.
The site ranges from 6 to 26 metres in depth, with an average depth of 15 metres.
Charpignat is a shore entry site, and no boat is required.
Yes, the site is open to both diving and snorkelling activities.
The lake has a significant thermocline. Surface temperatures can reach 22-24°C in summer, but drop to 10°C below 10 metres and 4°C at greater depths.
The primary hazards are the cold water temperatures and the depth. Divers should wear a thick thermal exposure suit and monitor their depth gauge closely.
Diving at Charpignat in Le Bourget-du-Lac requires the following certifications: Open Water. Always dive within your training limits.