Exciting, but also dangerous: high above on cranes, aerial lifts, and buildings is where you’ll often see Vincent Ravet. He is one of five industrial climbers at DEKRA in France and he deals with the non-destructive testing (NDT) of pipes and girders, as well as their welded joints. Specially trained and with nerves of steel, he can carry out these inspections even in extreme conditions. In summer 2019, he spent weeks in the French Alps inspecting the supporting towers of aerial lifts at the ski areas of La Plagne and Val Thorens. However, his next assignment will take him hundreds of meters below the Earth’s surface: his services are required by the CERN nuclear research center.