Lac de Laffrey is a freshwater Alpine lake offering shore diving at depths between 30 and 39 metres. This site is suited for intermediate divers comfortable with deep-water environments and limited visibility, which typically averages 5 metres. The lake features a reef structure and lacks significant currents, making descents manageable. The primary hazard is the consistently cold water, which requires appropriate thermal protection such as a drysuit or thick wetsuit throughout the year. The lake freezes during January and February. On-site facilities include parking and toilets, with boat charter services available for those wishing to reach deeper sections of the lake away from the shore entry point.

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.

Les Baigneurs is a freshwater lake dive located in the French Alps near Charavines. The site offers shore access and is suitable for beginners, with depths ranging from 3 to 15 metres. Divers can practise buoyancy in these calm conditions, which feature no current. Visibility is approximately 5 metres, requiring navigation in close quarters. As facilities are not guaranteed on site, divers should arrive self-sufficient with all necessary equipment. The location is accessible for diving year-round, providing a practical alpine freshwater experience outside of the summer season.