Dark pink blooms swayed over my son, their long, thin stems rising up from the muck. Lily pads the size of platters floated on the pond, their curved sides forming miniature walls. Blue dasher dragonflies flitted across the water, their wings nearly transparent. And a big, green tractor hauled dirt back and forth for a landscaping project. These were just a few of the wonders we saw at the Kenilworth Park and Aquatic Gardens in Washington D.C. this past weekend, when we visited with the kids and my parents. The tractor was my son’s favorite.