Slackliner Crosses Line Between Seoul Buildings
Monday, October 5, 2026162 words3 minutes2027 reads
On October 1, Estonian slackliner Jaan Roose crossed a 160-metre line between the Koreana Hotel and the Dong-A Media Center in central Seoul. The line was about 120 metres above the ground. News reports called it Korea's first urban highline performance.
A slackline is different from a tightrope. It is a flat, flexible band. It can bend and move under the athlete's feet. Even a light wind can make it sway, so the athlete must keep making small body changes.
Balance is not only about your feet. Your eyes show you where you are. The inner ear senses movement and helps the brain know how the head is moving. Muscles and touch sensors also send information to the brain.
The brain puts these messages together. Then it helps the body keep a steady position. If the messages do not work well together, a person may feel dizzy or unsteady. That is why walking on a moving line is such a hard sport.
