Hello, I'm an American student studying abroad in Manchester for the semester. I'm really looking forward to finding some beautiful walking/hiking spots away from all the touristy areas, into the real rugged beauty of England. I think this may be one of those types of places. However, as I'm a student, I don't have a car and can only travel on weekends using the train/bus. If I wanted to see a beautiful place in Northumberland with only a few days, preferably one with walking/hiking trails, where should I go from the train station? Thanks!