A group of young scientists explore the Balme Grottoes near Lyons.
Titles read: 'Meet the "UNDERGROUND CLUB!"'
Various shots of 'The Underground Club' - a group of young scientists who explore the Balme Grottoes near Lyons. They are exploring the subterranean caves on a scientific mission.
Deep in one of the caves one of the men, wearing just his pants and a cap, is covered in grease before climbing down a rope ladder towards the icy river waters below. The group are researching the flow of the Isere River to prevent it flooding the surrounding countryside. More shots of the men climbing through the small spaces in the caves.
M/S of the men walking away from the Grottoes after their expedition.