Over the months of being a member, Ive noticed so many in ground gunite/shotcrete pools with the rear/backside wall raised (with shear descents, scuppers, landscaping, etc.). We dont see that much here in South Florida, most pools just have additional decking, ground level landscape, or grass on the backside without the raised wall. Is this just a style and feature/accent, or is there functionality to it as well? We have a spa designed on the backside of our pool, perhaps it is a similar design concept? Just trying to learn if there is something else to the walls structurally or functionally, or is this just design preference?