We spent Ben's Wednesday morning off at the Middleton sprinkler park. It wasn't the best place for little kids because all the sprinklers were pretty high and forceful (and the water was freezing!), but Megan loved to crawl across the puddles and walk through the water.
Amelia still doesn't like to get her face wet, but she had fun collecting water in buckets and pouring it on Mommy and Daddy. She did run through a sprinkler with Daddy a few times.
But out of everyone, I think Ben had the best time.