first you have to climb up a tree and then you hold on to a rope and you slide all the way down.

Never heard of it - but l can tell you that you would get a really bad rope burn if you slide down more than a few feet. Ouch!

Good Luck

Climbing can be done with hooks on, they go around your boots and a spur digs into the tree as you climb, there also wearing a saddle harness, the comming down is a rope with a extended sinch slide knot, its fun to play and do this, l climb power poles and dont get to slide down a rope.. Arborist is the tree profession

repelling?????????????/