<p>
[quote]
Most Universities and Colleges have Human-passable tunnels running beneath them, which contain utility pipes, often steam pipes, as well as sewer, electrical, network connections. It has long been a college pastime to explore these tunnels. These tunnels are always off limits, and that is part of the lure - to do something "forbidden". Different schools have tunnels of varying quality, size, and cleanliness. Sometimes they are very large, well lit, and (seemingly) safe. Others can be dusty, hot (well over 120 degrees at times), tiny (crawling size), and pitch black.
[/quote]
</p>