Back in the late 80's we had the pleasure of carrying out the last few crew changes on the "sevenstones" light vessel before it was automated....I !!!! you not people it had a moving deck that made a Bolkow look like a chinook

Without a doubt on a slack tide it was pound for pound the most difficult landing sight I have ever encountered in 30 years of aviating..
That wreck had a lot to answer for...