That's a really uncommon thing to visit but way too unique not to take advantage of it especially that will be gone after 5th November. I feel you with taking pictures of it every time you get there because I've got the same feeling with some places that I often return to.
I do three shifts a week and often accompany family and friends there as well, so go at least four times a week, plenty of photo opportunities, my folder is so full of images now!