Many Years before Centurion Way became a wonderful footpath/cycleway it was the Chichester to Midhurst railway line
The last passenger train was run on the last section of the LB&SC Chichester – Midhurst railway, the gravel line to Hunters Race , in 1981 by heritage railway enthusiasts who were working to take over the line up to Lavant and eventually the line to Midhurst.
They also organised a walk along the line of the railway, as far as possible, from Lavant to Midhurst including the Singleton tunnel with a return journey by open top 1920s bus.
Many thanks to Mike Chires for information and link to video. couple of videos
Other videos of railway operating between Chichester and Lavant are available on YouTube.