With two locations--just minutes from West Chester, Downingtown, the Main Line, King of Prussia, Phoenixville and points in between-- Philadelphia Rock Gyms offers the most remarkable rock climbing experience and instruction in the area.  Use these two gift certificates for individual or family climbing lessons at either the Oaks or Valley Township location.  Introduction to Climbing  is for participants 16 and older, Family Climb Package is offered at Valley Township location only, and the Family Introduction Package is for one parent and two children.  Expires October 29, 2011.