in Western Australia, they have trees that are pinned for climbing. This is filmed from the point of view climbing a 65m (215ft) tall one.
No safety harness, permit, training or ticket is required, you just come, climb, and try not to fall.
Nobody has ever died from falling from this tree yet.
I filmed my climb in 4k, with no commentary, and no jump-cuts, to try to preserve the experience in video, for the day when climbing is inevitably halted.