What you are about to witness, is a pictorial account of what I described on Day 3 of our vacation. Essentially, this is the frame by frame evidence showing whyyou should NEVER run down a sand dune, with Kevin "Bulldozer" Rolfe. The red arrow in the picture below indicates my general location after less than 6 feet from the starting line (you can click any of them to enlarge):
Next year... he's going down. If I have to trip him, he is going down. Oh yes.