Totensee (Grimselpass)
A very high-altitude alpine lake near Grimselpass with cold water and rocky terrain.
Location on map
Totensee is a small artificial lake at Grimselpass, located at high elevation and surrounded by bare alpine rock. It is a unique place for altitude diving training and exploration in very cold freshwater conditions. Official consent required.
Basic information
- Area: 27 ha
- Max depth: 34 m
- Water temperature: very cold most of the year
- Elevation: 2160 masl
Access
Access is usually possible by road in the pass season, with parking near the lake. Always verify local conditions before diving.
What to consider?
- Plan every dive as an altitude dive
- Use drysuit and strong thermal protection
- Weather can change quickly at pass altitude
- Get official consent
Recent dive reports at Totensee (Grimselpass)
Altitude Diving in High Alps (Totensee, Lago di Cadagno)

Altitude Diving adventure in High Alps with Tauchclub Zug - let it inspire you for your travel.