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Talk about threading the needle. In an incredible video released by GoPro, a wingsuit diver flies through a cave located in Lauterbrunnen, Switzerland, but there's one catch: the cave is just 2 meters wide. Uli Emanuele, the diver, is always on the lookout for similar dangerous caves and holes, which he can use for his jumps.

But as easy as he makes it seem, it's not something that can happen in just a matter of days or even months. It took him three years after rigorous practice and multiple base jump attempts to fly through this cave. He shot the footage with a GoPro Hero 4 camera attached to his helmet, with the jump being sponsored by the camera company. The company went on describe this base jump as “possibly the most technical and difficult base jump ever”. And it seems like it. The video shows Emanuele making a last minute change to his jump off point and then, just about managing to make his way through the tiny cave.