The Tom Lantos Tunnels separate the north and south parking lots. Both of the two parking lots have an upper and lower lot; but there are less than 40 spots in total, so it was extremely hard to find parking on a Saturday.
We didn’t see any common murres on the trail, but according to Audubon, the common murre looks like a penguin and can have blue or green eggs.
The bunker is on private property, and there is a huge sign telling people not to trespass. However, it is not fenced, and we saw several people climbing up towards the bunker.