A volunteer-run heritage railway is giving visitors a chance to see behind the scenes at its annual open day this weekend. 

Chinnor and Princes Risborough Railway will celebrate 21 years of service with the event on Saturday, May 30. 

Between 10am and 3pm, visitors can take a free train ride along the line in a preserved railcar. 

Engine crews, guards, on-train stewards and the restoration team will be on hand to speak to train enthusiasts about what they do. 

Visitors can also take a look round the yard and signal box and see the progress on the Restoration and Education Centre, which is currently being built. 

Danny Woodward, chairman of the line, said: "We are delighted to give visitors an opportunity to enjoy the railway for free and to take a free railcar ride along the line. 

"They will be able to get up close and personal with the trains and also see the progress on our new Restoration and Education Centre, and more generally to see behind the scenes."

Anyone interested in becoming a part of the railway can also go along and learn more about volunteering opportunities.  

Visit www.chinnorrailway.co.uk for more information.