Always a good leader I gave the ladies a choice, did they want to walk all the way to the start of the blocked tunnel on a on disused railway, with lots of steps at the end to climb up to reach the height of the top of the tunnel, or the gentle slope to the top of the tunnel.
The steps were chosen so the railway enthusiast's among us could look at the tunnel and ask way too may questions, that I didn't know the answer to.