I made it, in Shenzen and still alive!
I actually went to Zhuhai and caught the ferry to Shenzen to look at the Zhuhai to Hong Kong bridge, holy mother of dog, it is surreal, it's a bizzarely long bridge sitting out in the middle of the sea, utterly out of place.
Google pictures of it, but they don't come close to seeing it for real.
Go to China not just to see the Great Wall, but now also the Great Bridge.