It makes the suffocating heat of the afternoon bearable.
Lots of the time we invite cousins or friends. Sometimes it's just us (and Halley :).
Sometimes I get my hair wet and do back dives to dazzle the kids; sometimes I opt for the mellow chill of the side of the pool.
We have a lot of fun.
We come home stringy-haired, wet-bottomed and hungry for dinner.