Take a jaunt across the bottom of Fairmount Park. Lots of trails around, and as of this post, construction happening in a lot of the park.
This particular part of the park is less traveled. Great area for throwing a disc around, or a Nerf gun shootout. Make sure to wear pants and bring the bug spray. There is some rugged terrain involved, including fallen logs and steep climbing. The canopy of trees tends to throw the GPS off a bit, too.
Container is a camo'd, Wookie-sized med bottle . BYOP.