This is my only picture of a Class 309 'Clacton' unit working in its original operating area. 309617 arrives at Wivenhoe station on 26 August 1991 with the 14:34 Colchester to Walton-on-the-Naze Network SouthEast service. This would also be the route for trains to Clacton, with trains diverging at Thorpe-le-Soken.