Larkin loved going for a swim in our neighborhood pool. It's only a short walk from our house and its open from Memorial Day to Labor Day. It's fairly large so it can accomodate the hordes of kids that arrive there in droves from our young family neighborhood. Larkin was brave in the water, but she liked the safety of the little floatie.
We played a "choo choo train" game we made up where we'd pretend that doors of a train/subway were opening, we'd go through them, then the doors would close, we'd ride the train (i.e. pull her around the pool), and then we'd get off and wave bye-bye to the choo-choo. It was a fun family outing and I know we'll be back very soon!