As part of the National Park BioBlitz, Ed Eder and Larry Cartwright will lead walks in this waterside and woodland habitat for the Friends of Dyke Marsh.
Getting there: From Alexandria, take GW Parkway south. Cross I-495; continue 1.2 miles to Belle Haven Park entrance on the left. Meet at the south parking lot. 6401 George Washington Memorial Parkway, Alexandria, 22307F