A movie going down the sloping dunes with acrobatic movements

Where the ground such as sandy beaches and sand dunes are fine sand is dangerous for people who are doing acrobatic exercise from the usual because they are bad at foot, but it is dangerous to make a buck and something, but on a steep downhill slope in the dunes There seems to be a movie filmed of a man going down in an acrobatic movement with being a place.

Although I feel a bit dangerous from the beginning, after that I will arrange the system and go down without danger.

Movie playback is from the following.
YouTube - Sand Dune Backflipper


Turn on the runway ......


Jump.


I thought that the balance was broken,


I will go down in the air in this splendid state.


Repeat from the backflip from backflip.


I landed safely.


If I failed, I may not have done with things like this boy.
YouTube - Failed back flip - backflip