I have been thinking of this for a while now but if they found a way to walk on water using chackra can the same thing be done to apply that to walking on air? If somebody fluent in naruto lore can explain if this is indeed possible or impossible? And if it is how would they go about doing this?

http://th07.deviantart.net/fs70/PRE/i/2011/252/f/2/tsuchikage_render_by_xuzumaki-d49bhvx.png