Discovery, Sporty or Grandes Verticales caving.Discovery: about 2 hours of exploration in a "horizontal" cavity. With an appropriate suit and a helmet with LED lights, explore the underground "caussenard" world. (family and children oriented activity). Sporty: about 3 hours of exploration in a more vertical cave with some technical passages: abseiling, a little bit of climbing and some ladders. Half-day activity, convivial and accessible!Grande Verticale: 100 meters deep cavity exploration with more technical concepts, like descent and ascent with a rope. Guaranteed ambiance!