The Yorkshireman
Well-Known Member
[video=youtube;3WyoenjZAZw]http://www.youtube.com/watch?v=3WyoenjZAZw[/video]
The leg levitation is done with a poly vinyl or thin steal strip going up the back of his leg that touches the floor, it bends and takes most of his leverage pressure as he leans.
It's the evolved version of this trick.......

And the river walk is a pre positioned plank a few inches under the water that he walks along.