3/5. Jungle Trek. There's a path running through the Amazon jungle that runs in the shadow of what locals call Tepui - incredible, flat-topped mountain formations that inspired Arthur Conan Doyle 's tale of living dinosaurs, The Lost World. Ray takes a trek along this traditional trading route and finds spectacular waterfalls, clouds of butterflies and one of the most beautiful villages on Earth. Series producer Ben Southwell ; Executive producer Dick Colthurst (AD)