Slacklining is similar to slack rope walking and tightrope walking. Slacklines differ from tightwires and tightropes in the type of material used and the amount of tension applied during use.
Slacklines are tensioned significantly less than tightropes or tightwires in order to create a dynamic line which will stretch and bounce like a long and narrow trampoline. Slacklining is popular because of its simplicity and versatility; it can be used in various environments with few components.
Less than a decade ago, this sport entered Iran, and the Iranian youths have set two world records in slacklining while still not being supported by any of the sports federations.
Following you can find the Young Journalists Club’s photos of the sport in Iran: