This video starts out kind of slow with some dirt bike riding before moving into the main part of the video which is snowmobile jumping. It isn't on snow but a dirt and grass area with what looks like a metal ramp. The first go he takes the snowmobile along the side to guage the distance I guess and then on the second shot he hits the jump. In each jump he does a trick similar to what you would see from dirtbike jumpers. One jump he kicks off to the side, or stands on the handle bars of the snowmobile, or even letting go completely. It looks like he may have almost lost it when he lets go completely as he is already pretty far back when he grabs onto the guard rails and gets back on the snowmobile in mid-air.