This dream happened a few weeks ago while I was on holiday in Western NSW.
I am traveling along a urban street. There is a hill slightly to the left and the road heads up and along the side of this hill. Out of nowhere a person I know (包括) appears next to me. For some strange reason we turn left. The road ends in a T intersection, just over the crest of the hill. There is a brick wall on the other side which seems to mark out a railway line. A car passes from left to right. There is a one way sign also pointing from left to right. As I watch, the sign becomes fainter and a new arrow is painted over the top from right to left. Even though the road is only one lane wide, I turn left. The road quickly does a 90 degree turn to the left as there is an old (say 100 or more years old) building built up against the railway line. Traveling along the side of the road, there is a spot where a hole has been knocked in the wall. The road I am on continues, turning right at the end of the building. Through the hole is a steep tunnel going down. There is a track inside this tunnel that looks like a 4wd trail. I refuse to go down the tunnel and the dream ends.