This is the jaw-dropping moment a daredevil walked barefoot on a slack line suspended 82ft above a railway line as a train thundered past underneath.
Extreme highliner pushed adrenaline levels to unprecedented levels when he trod a path between two cliffs near his home city of João Neiva in Brazil.
The 30-year-old said he decided to walk the line in September after he saw a photograph captured by a train passenger.
Extraordinary footage shows a train thundering below Caio as he made his treacherous journey.
Caio said: “This idea came after I saw a photo of the place taken by someone passing through on the train.
“I decided to search a little more and I was able to locate this place on the map, which to my surprise was only 90Km away from the city where I live.
“I like to explore different locations and this was one of those places that has a unique elements for practicing the sport.”
Watch slide of the photos: