Aegerisee
Glacial lake in Canton Zug with easy shore entries, rich freshwater life, and scenic mountain surroundings.
Aegerisee (Lake Aegeri) is a glacial lake in the Canton of Zug, between Oberaegeri and Unteraegeri. It offers calm freshwater diving with easy shore access, good options for night dives, and beautiful alpine surroundings.
Popular local sites combine simple logistics with interesting underwater topography, including drop-offs, slopes, and fish-rich shallow areas.
Dive conditions
- Water type: Freshwater mountain lake
- Altitude: About 724 m above sea level
- Average depth: Around 49 m (max around 83 m)
- Best season: Year-round, with drysuit strongly recommended in colder months
Safety information
- Check local visibility and weather before entering
- Plan navigation early, as features can become uniform in low visibility
- For deeper profiles, use conservative gas and decompression planning (altitude diving)
- Put on appropriate amount of layers - water is a few grad colder than in Zugersee