Parade of Ponds weekend. Of course, it is not all water features! You'll also see on the tour some gorgeous private gardens surrounding those fabulous water features. It is totally self-guided. See one garden or many. Go just one morning or fill up both days touring to your heart's content. The gardens are located in Washington, DC, Montgomery County, MD, and Howard County, MD. Bring your camera, a hat, and sunscreen!
This year the tour is FREE, but the organizers are asking you to donate to Shepherd's Table and will have collection points at various points along the tour. You can also donate online at http://www.shepherdstable.org/.