I found this place from a youtube video and found it very easy to get into. From the start you will be led into one main building which from there you can explore other parts of this site. some of the buildings do have asbestos warning signs though we didnt go in to them. There is a security hut on site that does be used, we got caught once though the guard was deadon about it and just showed us out. Though if you go in and dont make too much noise chances are they wont find you as we were caught once out of 7 times of visiting. Heres some pictures