The glacière of Font d'Urle

With a lamp and being careful not to slip, you can enter this long sloping cavity, at the bottom of which you sometimes find ice even in summer.This strange phenomenon, to which the place owes its name, is due to the narrowing of the cavity in its middle, which traps the cold air at the bottom. When moisture penetrates through the ceiling, the temperature is low enough for the water to freeze and form stalactites.In other times, the shepherds sometimes used this shelter as a "fridge", to conserve carcasses of animals!