In the video you'll hear me say there are two areas that mark the collapsed entrances to tunnels. Certainly the second area we can see shows a collapsed section of tunnel, but later Craig mentioned he believes the first area was the site for an anti-aircraft gun.
After the two short tunnels we saw earlier, we didn't expect much from this. But the fact there was a breeze indicated there would be at least one other exit open.
Just after the entrance there's an alcove on the right, then after a short traight the tunnel takes a sharp right. Corners were used to limit the effects of shots / explosions / flamethrowers from the entrance on people further into the tunnel. <Read more ...>
This is a bit unusual, in that the first section into the hill is wider than usual. It soon narrows though.
The other thing that is unusual is that there's a mound of spoil from the excavation just in front of the tunnel. Typically there isn't much sign of the spoil, and I've assumed it they's moved it away so it didn't show up in aerial photos.
Perhaps this was dug by a different group, or dug very late in the occupation and was a work in progress?