Totensee (Grimselpass)

A very high-altitude alpine lake near Grimselpass with cold water and rocky terrain.

Difficulty
Medium

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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)