I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Located on a remote headland about 3 miles outside of Wick and 1/2 mile outside the Wick FRZ, the remains of Old Wick Castle stand prominently on a headland. Perhaps not the most romantic of ruins, rather thick walls, but in its heyday allegedly a strong fortification with more buildings than now appear.
A bit of a walk from the listed car park, but it looks like another route is possible - by going down the dirt track road of March Lane.
Sea cliffs mean seabirds, and when we visited it was nesting time, so take care to stay away from them and you should be fine - we had no issues on our visit.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 24/06/2023. It remains the responsibility of any pilot to check for any changes before flying at the same location.