Lets turn the great wall of china into a giant waterslide

It is my belief that the great wall of china would serve to benefit the country china if it was converted into a giant waterslide. As a wall it is failing to protect china from foriegn invaders which in this day and age are tourists. So instead of failing to fend off these people, china should embrace them and turn the great wall into one big water slide. this would greatly increase tourism and therefor revenue and it would also show the world just how fun china is. I hope you will all support me in this venture, this slide to innovation might be a little splashy but together we can get there.