Perspective Problem

When you see the pictures of the ghats that I have posted, you will see a picture of water fall ending in rocks that I have taken from the top/above rather than from the bottom of the falls where people usually take it from. I was wondering how one can accomplish drawing the waterfall from the top view instead of the bottom view. I mean mostly all pictures are taken from bottom to top and a lot of paintings on this subject also show the similar view. But how do we go about depicting the opposite view on a paper is what is boggling me these days.!! If you have got any ideas please share...