Looking in from the entrance.
Heh... When we got here we realized niether of us had thought to bring a crowbar. We had to use an old purse strap we found to pull the manhole cover off. The strap broke just as the cover cleared the lip.
This section was collapsed but there was just enough room to squeeze through.
A short tunnel.
This is the main tunnel that runs around the island. Theres a ton of offshoots from it that go all over the place. Some of them are pretty cool but a lot just dead end.
Kind of a dark picture... but thats one of us off in the distance.