The Netherlands is a flat country. There are no mountains or rocks suitable for climbing. They had to find a way out. Their climbing tower Excalibur is the highest climbing wall in the world - 37 meters. By the way, the photos from the air were taken by a camera suspended on a kite.
This is the Excalibur climbing tower at the Bjoeks climbing center in Groningen, Netherlands. It is 121 feet meters) tall with an overhang of 36 feet meters), known as the highest climbing tower in the world, AWWWWWWWWESOME!!!! On my bucket list!