One of the most curious features of the Grotta dei Cordari is the unique effect created by rainwater, which penetrates from the vault through infiltrations and covers the ground, forming a thin lake of still and transparent water.
Thanks to its particular chemical composition, sometimes the rainwater takes on pastel colours tending towards pink and green, with a thousand different shades.
The colours are reflected onto the rock faces and create spectacular plays of light, which make this place magical and evocative.
