I've fallen close to thirty feet before. I was rock climbing without ropes and got to a a point on the rock face where I couldn't climbed anymore in any direction, and I couldn't climb back down the way I came up. I just sttod there clinging to the rock face until my muscles couldn't hold me there anymore. I probably fell 25-30 feet and landed on my feet. The ground was uneven and most of the force of the fall was transfered to my left leg and ankle. The force of landing threw me to my back and I skidded along the ground for a little bit. Luckily I was climbing with a friend and she helped my to our vehicle and to the emergency room. I only ended up with a severe ankle sprain and the cuts on my back. Ever since then I have had a fear of heights that I had never had before.