Mamet Cave Croatia First air balloon flight to the underground

Exactly ten years after the recording of Felix Baumgartners basejump in the Mamet Cave went around the World, this abyss on Velebit Mountain became the scene of another incredible daredevil venture. Ivan Trifonov, a seventyyearold Austrian with a Croatian passport, was the first man to try, and succeed in flying a hotair balloon underground. This experienced hotair balloon pilot is already a proud holder of 4 Guinness records, and flying into the Mamet Cave, touching it s bottom and successfully flying