Ranger and Rover tickets give you so much flexibility for travel by train.  You can hop on and off trains within the permitted area of travel and give you freedom to roam.  Unfortunately, these tickets cannot be bought online.  They can be purchased at a staffed booking office or from the conductor on the train.

Other tickets including a variety of single and return tickets are available depending upon the journey you wish to make

More information about the numerous ranger and rover tickets available at here