We know for you and your horse to have an enjoyable ride is Super-important, for your arena to be watered for a couple of reasons. And that's to have consistent, stable footing and to keep dust down to a minimum. So water is a binding agent. That means it's holding your footing together. If your arena is not properly water throughout the entire thing, you're going to have loose, dry areas and your horse is going to be able to feel those inconsistencies underneath the surface.