The Underground Booty Squad
Although the former Heinrich Brewery buildings are long gone, a medium-sized system of caves still exists under the bluff. In parts of the cave, the ceiling is collapsing and the rooms have been reduced to crawlways. In the back, there is a low squeezeway that goes on for a while before abruptly ending at poured cement - a sign that this is a former connection to something on the other side. What it is isn't exactly clear, this tunnel leads away from the bluff.
The rest of the caves aren't all that interesting and consist of several interconnected rooms.