 He worked for ČSA in Iran and later in Canada.He has visited 85 countries and organised several expeditions for research of cryptids, such as Kongamato (for this he was offered the membership of the International Society for Cryptozoology which he accepted), Nandi bear, Megalania prisca, Bigfoot, Yeti, Nessie, Ogopogo, Champ, Megalodon, Lusca, Ambazombi and others.In 1978 he organised an expedition to the tepui which probably inspired Sir Arthur Conan Doyle for writing The Lost World (a book based on stories told to Doyle by Colonel Percy Fawcett).