I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Plenty of nearby street parking, please park considerably, or nearby supermarkets that allow 3 hours of free parking.
TOAL from the East side of the breach where there is some green space to easily get in the air.
Fairly busy area and plenty of people nearby walking in and out towards the town centre. I got asked a few questions but all were friendly and just inquisitive. If you're there for trainspotting (not much else to do here) it's pretty obvious what you're doing hopefully.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 02/09/2021. It remains the responsibility of any pilot to check for any changes before flying at the same location.