Sandpit of the week

This is the sandpit at our local playgroup with I and E getting ready to play. The heavy frames leaning against the fence hold in place a couple of large tarpaulins - this seems to be effective against cats, but a bit of a pain to life out of the way.

In fact, today we spent very little time in the sandpit. E is currently fascinated with water - pouring it, carrying it, filling small containers from larger ones. I is very into spatial relationships: she puts her body into spaces (like the 'cosy coupe' ride-on cars), and she opens and closes things (door, letterbox).

I could try putting water into the sandpit for E. And I wonder how I(child) would like tipping the tip trucks in the picture?