People tend to check in during these times:
Live Outdoor Entertainment at it's Best.
DC Gay Flag Football League's 1st Gay Bowl Championship game between the Washington Generals and the D.C. Admirals is 7-24 at 10am in preparation for the Gay Bowl in Houston. 2nd game July 31 at 10am;
The Carter Barron Amphitheatre is a 4,200 seat outdoor performance venue located in Rock Creek Park, and opened in 1950 in honor of the 150th Anniversary of Washington, DC as the nation's capital.
Great DC Blues Festival
Great place to host an outside event.
Best hiking and tennis