You're supposed to have a spring around the line against the tree to stop and propel you back bro. Might want to think about getting one before you let the kids go down it lol
Is he okay? I wish I read that it was a zip line accident before I watched it. I had a very scary experience on a zip line recently. They are dangerous.
Yup people have died hitting trees at that speed skiing ⛷️.this guy hit the back of his head on the flip. He is probably severely injured if he survived.