I've been up here 3 times this year with 3 fails because of all the activity. Good work getting it done. Not seen a post from this place for a good while
Love the pics of the 'Cathedral Roof' as we used to call it, although it looks a bit blacker than it used to. Theres a P/Way hut built into the side of the live tunnel about mid-way through complete with windows and fireplace with a chimney going out into the tunnel.
I had a quick look today from the Diggle end and both disused railway tunnels had massive gates blocking both entrances.
I have a Network Rail Number 16 key which gets you through most railway gates but unfortunately the gates on the Diggle end of the tunnel are locked by a different type of key.
There's always access down the Bailey Mill chimney, which has links to the tunnels by the secret priest passages, dug by Irish navies in the 13 Centuary to allow escape from the local Morris Men and a safe route into Yorkshire if the Lancastrians ever managed to invade the area.