Took a trip there today but very dark and started hammering it down so had to call it off but I think we found the area where the entrance is anyone shed some light I got the maps off here. We were on the dual cariige way pulled up on the pavement next to the railway bridge that enters the steel works and walked along to the main entrance I take it to get into the bunker we need to somehow scramble down the railway emabnkment and find the entrance along the railway line?