Use postcode PH37 4LT for both car parks. Note that this is on private land and as such, the use of DRONES for footage requires payment via mobile phone to the landower. A sign is visible on the gate in the free car park. At the time of my visit this fee was £15. General photographers have the option of endless compositions of the viaduct but, when the train is due, it can get very busy so you may have to recompose your image at a moments notice as people tend to stand in your shot!