Hehe, it's not the tallest wall. 10-15m I'd guess... The whole entire floor is one large crash mat too. Been on much higher walls and you def need a safety harness for them.

We used to to the junior climbing club there where they'd teach us how to set up varouis rope systems like absails and prussacks etc, really good looking back.

But we turned into horrible adolescents and started using the harnesses and ropes to enact the matrix and crouching tiger etc and lost interest.