The caves of Poudrey in Etalans, offer a real journey into the centre of the Earth! An exceptional natural site – so huge that it could easily contain the cathedral Notre-Dame of Paris – opens itself to you for a unique subterranean walk! For 45 minutes, you are sure to be delighted by the magnificent stalagmites which are hundreds of thousand years old as well as uncountable stalactites. Through a sound and light show, on the theme of earth and water, the cave will appear to you even more fabulous and supernatural.