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In Italy we are told of “the fallen angel of French speleology”, Marcel Loubens, who winches himself into an abyss only to have his belt clip snap.

Caving, or speleology as it is sometimes called, can give you the chance to abseil down underground waterfalls, squeeze through holes and abseil down rifts.

In 1964, when he was 18, the high school dropout parlayed his amateur prowess in speleology into a job as a technician at the newly formed National Institute of Hydraulic Resources.