Winding up for the big air winter sports

These guys are amazing.  This jump had several options. You can go up the pipe, or over a couple of gaps  (think bear traps). Never seen anyone fall into them but you would not want to either as they are nearly 2 m deep. 
My extra image shows a more tricky one tho the riders made it seem easy. There you jump up onto and along a horizontal metal top then drop off onto another pipe.  Again with bear traps to freak to timid out.