This is a photo from the creatively named "Warren's Shaft" in the City of David, which is a community south of the old city of Jerusalem. What is interesting about the City of David is it is actually biblical Jerusalem, with the Temple Mount to its North. Warren's Shaft acted as a new water passage for Jerusalem in order to protect the local water supply from being poisoned by invaders.

The tunnel was narrow and filled with water that at some points reached below our waists. It's obviously not in use anymore, but it was a lot of fun walking through. Most importantly, the history that came along with the excursion to the City of David gave us a good background in understanding the geographical and historical significance of Jerusalem that is relevant even today.