Photographer Christoph Jorda snapped a few pics of his twin brother Matthias, 39, barrelling through this ice crack during a visit to Tyrol, Austria.
The temperature inside the tunnel was a ’nad-rattling -5°C and the pair from Kaufbeuren in Bavaria, Germany, stayed in there for the entire day.
We’re betting this wasn’t the only icy crack at the end of that session.