Hi all, I am creating a suprise garden area for my dad for ffathers day, and it is japanesy in style, by no means proffesional like your gardens are, but that is not the intention. My question is - I have an area of ground to cover around a basin of water, but I have no gravel. I can't leave it bare, but i have found some sand - will this work? I've tried a bit and it looks ok, i just didn't know if it would last or not. The bag says its builders sand. What do you think?