I had seen that Castleford had an old derelict viaduct from this website, but hadn't seen that anyone had done a Drone Adventure there.
I parked alongside the canal and walked towards the viaduct... Unfortunately I couldn't get all the way to the viaduct the way that I went but the drone was more than capable of getting there.
This is where Castleford Viaduct is:
Here are some pictures that I managed to take and some video.