You need a landing mat. It saves your knees for many years of climbing to come.
I've got old mattresses under it now. My son was just anxious to get on it....as was I :).
paint the wood blue or does it have some special coating?
base white coat and then sprinkled silicon "salt" on it for texture while it was wet. Then two coats of blue paint over top. The silicon was a mistake. It's not necessary and can be hard on the shoes and skin.