we did this just to know how far below was the river. the rock that they threw down was too heavy for one person, together my brother and cousin manged to push it off. when it makes contact with the river you can see how small it is compared to the others in the river it self. dont be "bewildered" if you fall off, your dead.<br />...<br /><a href="https://www.youtube.com/watch?v=TR-ESYIcuXk" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=TR-ESYIcuXk</a>