تماشای ویدئو بند بازی روی دریاچه قله سبلان توسط الکساندر شولز از آی-ویدئو

This is the nerve-shredding moment that a German high-wire adventurer walked across one of the highest lakes in the world. Alexander Schulz claims his walk over the volcanic glacier at the summit of Mount Sabalan in north-west Iran is the highest-ever elevated slackline over water. Sabalan stands at 4,811 meters above sea level (MASL), which puts it higher than Mont Blanc, according to local media. Schulz successfully walked 68 metres without falling, alongside three other members of his team.