I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Situated at the 2nd Churchill Barrier with a visible mast above surface is what remains of the Blockship Emerald Wing, sunk in the 2nd World War to prevent Uboat access to the safe anchorage of Scapa Flow 0 where the British Home Fleet was based.
Park on the small free car park at the southern end of the Churchill Barrier and fly from there, make sure the airfield at Lamb Holm is inactive first - not an FRZ
There are actually multiple ships and a floating crane pontoon all sunk here, but the crane (large square metalwork) and the Emerald Wing, which is laid at about a 45 degree angle to the line from dock to the mast.
Fortunate to have a still day with sunshine and smooth water…
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 29/06/2023. It remains the responsibility of any pilot to check for any changes before flying at the same location.