Yes, it's a hair-raising display of an extreme sport in action – but this video also highlights the beauty and sheer magnitude of Greenland’s icy seascape. For professional ice climbers Klemen Premrl and Aljaz Anderle, traversing the giant ice-cliffs serves as a reminder of just how fragile we humans are.

"You get this sense that you are so small and the world is so big," says Anderle. In the face of climate change, it’s important to stop and marvel at this unique view of icebergs … after all, we don’t know how long they will around for humans to climb. "Now the ice is always moving. It’s always changing," Anderle says.