Everyone in the world has heard of The Great of China. I walked on it today - and it was quite tough. I have climbed Snowdon (in Wales) within the last twelve months and this was steeper/tougher.
Nevertheless, I had a great day climbing as fast as the lookout in the West Wall (the highest point is two towers further, tower 12).
There are toilets at the bottom and at tower 11. There is a gift shop st the bottom and at the West Wall lookout point.
A very satisfying day ticking this off my bucket list. Highly recommended.