Diving under ice, it goes like that in Switzerland !!!

Diving under the ice and / or at altitude are specialties that can easily be practiced in Switzerland.

When you are under the ice the water is cold, you need specific equipment and it is imperative to find the exit hole ... moreover when you rise above sea level and that the 'we go up in the mountains, the atmospheric pressure drops. As a result, the pressure ratio between the absolute pressure and the atmospheric pressure changes: the decompression calculations have to be redone taking into account the change in this ratio.

We practice ice diving at an altitude of 1848 meters, in the Col des Mosses region, in the Vaudois Alps.

Seb Schüpfer's video

All the subtleties of diving under ice and / or at altitude are the subject of specific courses giving right to certifications CMAS.CH and SDI.

Download the manual “Diving under ice”And the manual“Diving in altitude".

Source MZPlongée - thank you Mauro

Absolute pressure : pressure measured above the total vacuum or absolute zero. Absolute zero represents a
lack of pressure.
Atmospheric pressure : It is the pressure exerted by the atmosphere of the earth. Pressure
atmospheric sea level is 1,012 bar.
It can vary from +/- 25 mbar with rain or good weather.
The value of the atmospheric pressure decreases when the altitude
increases.