Thanks guys. Virgs and I have even contemplated getting a trolley with a rotating head to animate this location. The tide could be a problem though.

This was done at 0.4 and the other end was 2.1.
Josh, it is a great spot as you would know. There is a bit of light pollution at the spot though. The council has seen in its infanite wisdom to place several lights which shine onto the site. That makes it difficult.
Still great fun to have a go at anyway.