Go Ape Tree Top Adventure - ROCKVILLE, MD. - "six zip-lines, with rope ladders, crossings and Tarzan-style swings. Before you start monkeying around, a guide will provide 30 minutes of safety information and instruction, then you’re free to swing through the trees for two to three hours. Goape.com"
Theodore Roosevelt Island ~ For another outdoor adventure, take Metro to Rosslyn (or rent a canoe and set sail from the Georgetown Waterfront) to explore Theodore Roosevelt Island, an 88-acre park and tribute to the environmentalist president.