Not more than 3-4 hours away from DC. My parents and I (And my brother), are looking on doing something "outdoors" next weekend (Yes, 5 days). Except, we have no idea what to do. I suggested Ocean City (3:30 away from home). White water rafting in PA was also an option (4:30 away from home). I suggested VA Beach, but if we were going to a beach, Ocean City was more of an option. Anything else?