I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
http://karting.cc/karts/competition-karts/
700 metre outdoor circuit
Disused RAF Grimsby ajoining site.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 28/08/2021. It remains the responsibility of any pilot to check for any changes before flying at the same location.