A video has surfaced online of two mysterious dangermen scaling a 70-metre-high bridge over remote New Zealand bush.
The adventurers scale the disused viaduct, located somewhere in the Central North Island, which was built at the end of the 19th century.
Posted on the website of urban explorers Urbex Central and entitled, 'Machineries of Joy', it was filmed by 'Gunner' -- someone who describes themselves on their website as a "film maker, explorer, writer, ethnographer".
A description of the breathtaking feat says the viaduct overcomes a "major valley obstacle in the construction of a national rail line in New Zealand".