It's possible to walk on water. I mean, you can skip a stone across water too, right? It's just not exactly humanly possible. Water can theoretically support the weight of a human only if they have beyond enormous feet or if they can run stupid fast. How fast?
Well much faster than the fastest man on Earth. Science Channel says that Usain Bolt's speed tops out at about 10.4 meters per second. To run on water, you'd have to zip three times as fast. So around 30 metres a second.
So you're telling me there's a chance?