This wall climbing I find myself in my I train. It is quite high and it very much. I've never been at the top. But surely it would be something special! In my school, unfortunately, is not often used the wall for climbing. The last time the class PE was used a year ago. It's a very long time.
Climbing is not so dangerous. They are very good security which prevent falling. From what I know in my town you can attend for a good fee for climbing on the wall at school.
Apparently, PE teachers are prepared at any time to conduct lessons on the wall and behavior during emergency.