Water play

Why do people at creche* say "water play"? Don't they mean playing with water?

Woman at creche - We encourage lots of water play

Apeman - Water play?

Woman at creche - Yes. Playing with water.

Apeman - (guessing) Do you also encourage lots of

foot play?

Woman at creche - Foot play?

Apeman - (explaining helpfully) Playing with feet.**

*This photo is not at creche, it's at Anna and Owen's lovely place north of Auckland and Eleanor is playing with Ruby (and with water).

**This is an imaginary conversation. I'm too much of a wimp to actually say this kind of thing.