I'm sure that is as easy as it looks!

very cool.. Wondering how it works in terms of the energies to create the foiling.. Just running down the wave face and pumping the foil?

Kai Lenny can pretty much make any water-based board sport look easy....

Pretty cool, but not too practical if you actually need to get back upwind - that would be a lot of paddling.

sm

95% of surfing is paddling.

True, but if you're surfing near shore it's a little different than if you're going out into open water and blasting down swell (downwind) for miles at a time. Paddling back home upwind against the swell and dragging a foil the whole way would be torture (if not impossible). You more or less have to have someone waiting downwind to pick you up and bring you home.

sm

or this contraption....

Ultimate training device. If you get tired and/or stop for any reason, now you have to swim back.