The best way to “move” sand is compressed air from underneath. Water only makes it harder because you have to saturate before it has the same effect.This is amazing however you didn’t show the barge completely empty. You’re only showing 2/3 of the video if you don’t get to see the barge empty.Please show us the emptying of the barge all the way to the end. Your videos end way too early. Also, why is there a cut in the film every time a huge portion of the hill comes down? I've noticed this on quite a few of your titles. Please stop editing the vids and let us see the action from start to finish. Love your vids as they are hypnotizing. Thank you.