

Best for intermediate divers, 15-40m, shore entry.
Lac Lioson is a high-altitude freshwater lake in the Lausanne-Montreux area, offering shore-entry diving for intermediate divers. The site reaches depths between 15 and 40 metres, with an average depth of 25 metres. Divers encounter visibility ranging from 5 to 10 metres. The topography includes overhead environment features, requiring careful buoyancy control to avoid contact with structures. Water temperatures are consistently cold, typically between 1 and 3 degrees Celsius, necessitating appropriate thermal protection. Facilities at the site include a café and showers to assist with post-dive recovery. Typical dive times are approximately 20 minutes.
46.38751, 7.12806
Cold water is the defining condition here regardless of season, so a drysuit or a well-fitted thick wetsuit is essential rather than optional. On-site showers and a café make kit-up and post-dive recovery straightforward from the shore entry point.
Located above Les Mosses.
Expected in this region. No sightings logged here yet.
Depth
15-40m
Visibility
5-10m
Skill Level
Intermediate
Entry
Shore
Current
None
Typical Dive
20 min
No, this site is classified for intermediate divers due to the depth range and the presence of overhead environments.
The site offers depths ranging from 15 to 40 metres, with an average depth of 25 metres.
Lac Lioson is a shore-entry dive site.
The main hazards are the extremely cold water temperatures and the presence of overhead environments.
Due to water temperatures of 1 to 3 degrees Celsius, a drysuit or a well-fitted thick wetsuit is essential.
Diving at Lac Lioson in Les Mosses requires the following certifications: Open Water. Always dive within your training limits.
Visibility at Lac Lioson in Les Mosses typically ranges from 5 metres to 10 metres. Conditions vary with weather, tides, and seasons.