The Claustrophiles

This film about caving is not meant for cavers, but for all those people who stay outside and ask questions such as: "How can you breathe?", “Aren’t you afraid of being trapped there?", "But...what do you do in there?" Speleology films focus on the scientific study of caves and the cave environment. But they rarely talk about speleologists - who are these strange people who live unlike others?