This worked out fairly well, except that Mason wanted to treat the sand the same way he treated the water during warmer weather: something to fling in all directions. I was only partially successful in dissuading him. Otherwise, I sat back and played with my phone — and found that the wifi carried all the way out to the patio… sweeeeet. The sand was much warmer on bare hands than water could be, a major plus.
Naturally, it wasn’t all that long before they decided to explore a little. This was mostly wading through where I’d piled the leaves from the back yard, and they came right back when I told them to (it’s a miracle, I tell you!).
Finally, lunch called and we all went inside. With rain coming tomorrow, I put the covers on things and left the spilled sand where it lie. It’ll likely wash in between the tiles, where it will possibly do some good.