Take I-81 South to exit #16. From the 581 onramp, that's an approximately 45 minute trip to Exit #16.
Take Exit #16 (Lincoln Highway, US Route 30) and at the end of the ramp turn RIGHT towards Chambersburg. Go .8 miles and at light, turn LEFT onto S. Coldbrook Avenue. Go 1/2 mile and turn RIGHT onto East McKinley Street. Go approximately .2 miles through the residential neighborhood, and the YMCA will be on your left at 570 E. McKinley Street, Chambersburg.