Story goes that the fabric bridge was supposed to be constructed in Argentina years ago, but after planning permissions fell through the project got shelved.
Then, decades later, Christo resubmitted the plans to the Italians and they jumped on the idea.
It's been attracting thousands of visitors to Lake Iseo - some of whom have walked the full 3km length of the walk, others, well, less.
It's been creating chaos for Italy's public transport system in Brescia, which is not coping with the tens of thousands of visitors who stream in from dawn each day.
The video I've posted above is apparently a live webcam. So if you see someone drowning or something, call the Italian police. Don't call me, I'll be at the beach or having a spritz away from all those selfie sticks. And if you can't see anything, it's probably because it's night time and you're in another place. Not my problem!
But, can I just say, I think Christo's idea is a bit old hat. Kind of like, dawn of the Christian era contemporary art. All that's missing are the fish and the loaves of bread or whatever they used to eat instead of rice crackers and hummus back then.
Listen, people in Northern Italy are already constantly walking on water. Have you never seen Venice when it floods? It's like a watery magical city where people create miracles. They're always walking on water there, surrounded by thousands of tourists who are all like, wow look, we're all sinking. Venetians are just trying to get on with their day.
Christo's project would've been more fun and novel if he had included some obstacles above and beyond the Italian public transport system. You know, like people dressed up as crocodiles who come snapping at your heels. Or, you have to keep walking while collectors for Greenpeace or Oxfam or whoever badger you for donations. It would've been more contemporary, more meaningful to modern life, and more importantly, more like It's A Knock Out. That was awesome and so totally awesome!
And in the spirit of the Brexit, here's a video from the British Royal Edition of It's A Knock Out that took place in 1986 or 1987. Back before Fergie discovered shrimping.
More on the Christos project here if you need to know more.