Zugersee

Central Switzerland's premier freshwater diving destination with multiple accessible entry points.

Zugersee is a 38 km² lake in central Switzerland, max depth 197 meters, average depth 83 meters (detailed underwater profile on map.geo.admin.ch) It offers excellent freshwater diving opportunities. A lot of stone walls, that are especially impressing in the Walchwil area.

Dive conditions

  • The visibility around thermocline is often very limited, and sediments often go up to 30m, but under 30m good sight is almost guaranteed.
  • Water temperature: 4°C (winter) to 22°C (summer)
  • Best season: Year-round (drysuit required Nov-May, recommended whole year)

Security information

Zugersee has often extreme thermoclines. Sometimes the transition between warm and cold water is almost immediete - cold shock risk. Cold showers and sauna help to prepare your body for quick water temperature changes.

Sometimes clear water layers are separated by few meter of very bad visibility. It creates a security risk for technical dives, often you’ll have to do most of your decompression stops in very bad visibility. Never rely exclusively on your dive buddy for redundance when doing long decompression dives.

In winter - when surface temperature drops to 4°C-6°C - there are no thermoclines.

Dive shops / compressors

Nearby attractions

Animals

Sport, adventure

Dive locations