I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission not required.
Park in car parks along the links road. No parking fees. The dunes are, I believe, National Trust, but the beach isn’t.
Be aware of Nature Reserves further south at Hauxley and on Coquet Island.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 31/03/2021. It remains the responsibility of any pilot to check for any changes before flying at the same location.