Funny you should mention Marsden Rock..
My partner used to live in South Shields, when we first got together we used to walk around that area quite a bit.
When we are passing the area, which is two or three times a year, we always stop and reminisce (ahhh!!!)
I've always had a bad gut feeling about this place, especially in the car park at the top of the lift to the grotto.
When walking along the cliff top, I've always felt like we were being followed.
Once, I was convinced I had been pushed by something from behind when getting back in the car (although it does get windy there it was a really lovely day)
I've always had feelings of suffering animals there too...
Obviously, Scott recons I've got an over imaginative mind and has never believed a word of it!
It will be interesting to hear what you have to say Paul!