Respect of the natural evolution of the cavern
The cavern is a stable environment, with a high hygrometry (95%) et constant temperature of 14°C, we should therefore ensure that the presence of humans affects its evolution as little as possible.
The circulation of water and air in the cave are vital, for both the mineral preservation of the site, and the regeneration of our stocks of drinkable water.
- Control of the distribution of drinkable water on the site, and surveillance of the impact on the stocks of groundwater,
- Awareness of the cavern’s hygrometric level to maintain equilibrium,
- Limitation of the number of visitors during the summer to prevent the negative side effects of over-frequentation, and the rising levels of CO2 in the air.
One should note that, the two principal openings present at the extremities of the subterranean network naturally impact the renewal of air inside the cavern.