Grotte de la Passerelle is a challenging freshwater cave dive located in the French Alps. The site features depths reaching 78 metres, requiring advanced, deep, and cave diving certifications. Divers enter from the shore and must navigate moderate currents within the overhead environment. Visibility is variable and can decrease significantly inside the cave system. Given the depth and the nature of the environment, divers must manage decompression requirements, gas consumption, and the risk of nitrogen narcosis. The site demands strict buoyancy control and the use of redundant lighting systems. Due to the cave layout, teams should have a practised lost-line protocol and verify local conditions before entry.

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.

Fosse Scubawind is an artificial reef site located in the French Alps. This shore-entry dive is suitable for beginners, with depths ranging from 1 to 6 metres and an average depth of 6 metres. Divers can expect mild currents and visibility between 15 and 20 metres. A typical dive at this location lasts approximately 40 minutes. On-site facilities include air fills, a dive shop, changing rooms, toilets, and showers. Please be aware that the site presents a deep hazard. This location is rated highly for its accessibility and infrastructure.

Carrière de Chamagnieu is an artificial reef site located in the French Alps. Divers access the water from the shore to explore depths ranging from 4 to 18 metres. Conditions are variable, with visibility fluctuating between 2 and 15 metres and currents remaining mild. While surface temperatures can reach 25°C during the summer, the water remains significantly cooler at depth. The site is well-equipped for visitors, offering parking, toilets, showers, changing rooms, a rinse station, air fills, and equipment rental. A cafe and guided tours are also available on-site. Divers should be prepared for cold water and low visibility conditions.

Cap des Séselets in Annecy-le-Vieux offers a shallow freshwater environment suitable for both divers and snorkellers. The site features a combination of reef structures and seagrass beds, providing a varied underwater topography. With depths ranging from 1 to 5 metres and an average depth of 2 metres, it is well-suited for beginners. Entry is via the shore, and the site experiences mild currents. Facilities including parking and a cafe are available nearby. Divers typically spend 60 minutes exploring the area. Please note that while the site is located in a freshwater lake, the provided data indicates a hazard of sharp coral, which should be avoided.

Grotte Lamartine is a freshwater site located at the foot of the Mont du Chat in Annecy-le-Vieux. The site features a shallow cave and a rocky reef, with depths typically ranging between 1 and 5 metres, averaging 3 metres. Access is available from both the shore and by boat, with parking facilities provided nearby. The site is suitable for beginners and offers a moderate snorkeling experience. The rocky shoreline provides a variety of habitats for local freshwater organisms. Divers and snorkellers should be aware that conditions at this site can vary.

Tête de la Vache is a freshwater dive site located in Lac du Bourget, featuring a diverse topography of reefs, drop-offs, and canyons. The site ranges from 20 to 80 metres in depth, with the upper sections accessible to beginner divers. Visibility typically averages 5 to 8 metres, and currents remain mild throughout the area. Divers should remain vigilant regarding boat traffic, particularly during ascent, and are advised to use a surface marker buoy. Water temperatures can reach 28°C during the summer months, though thermoclines are common in spring. Air fills are available at the on-site dive shop.

Exsurgence du Perthuis is a technical cave dive site located in Annecy-le-Vieux, France. As a freshwater resurgence system, the site is defined by its overhead environment, requiring divers to possess appropriate cave and technical certifications. Entry is from the shore, with parking available nearby. Conditions, including visibility and water flow, are variable and fluctuate significantly based on upstream hydrology, rainfall, and snowmelt in the French Alps. Divers must be prepared for changing currents and restricted exit paths. This site is strictly for experienced technical divers capable of managing the risks associated with cave penetration and complex overhead environments.