I tried to visit this place a few years ago before the fire and security was pretty tight, and I was removed from the site. Since it's deteriorated the security has all but disappeared. The site first opened in 1902 for research, biological work, and preservation of the fishing industry and marine life surrounding the Isle of Man. It closed in 2006 and has laid empty since. A fire partially destroyed a large section of the site in December 2016.
More at https://www.forgottenisle.com/p805843994
More at https://www.forgottenisle.com/p805843994