Thanks...Yeah, this morning, I biked the charles river path. I started in Cambrige from Mass ave and headed west to what seemed like the end of the path, where it crossed a bridge back into Boston. I followed the path that goes along Storrow Dr back to Mass ave. I didn't like the path though because you have to cross the road too often, and you are also biking right next to the road most of the time. I will pick up one of those maps though.