If a climbing wall is high enough you don't need to belay down, you can just BASE jump. Climber and BASE lover Tim Howell traveled to the highest artificial climbing wall in the world - the Emosson Dam in Switzerland. It's 165m tall, (6 pitches) and a very scenic float down if you play your cards right. Tim climbed the first five pitches on rope, then strapped on his BASE parachute and attempted the sixth. Unfortunately, he was a little pumped and didn't finish the climb. Fortunately, he steadied his fall and had an insanely cool BASE jump.
Free Soloing And BASE Jumping From The World's Highest Climbing Wall | Bona Fide, Ep. 3