Marco Siffredi wasn’t just a snowboarder—he was a pioneer who saw the mountains as his canvas. From the extreme slopes of Chamonix to the deadly heights of Everest, Marco redefined what was possible on a snowboard. But in 2002, after attempting a historic descent of Everest’s Hornbein Couloir, he disappeared without a trace. What drove him to take on such an impossible challenge? And what really happened on his final ride? In this episode of Wild Curiosity, we dive into the life, legacy, and haunting mystery of the snowboarder who was never seen again.