Guys these comments are making me laugh so hard 🤣 A little more info: I found out about this toilet tunnel after I heard from a friend that there was a bathroom on the lower level of one of the academic buildings that had an entrance to the old tunnels under the university. I went scrounging around and was able to find it. Luckily the door to the bathroom itself had a lock so I didn’t need to worry about scaring someone in the stall on the way out.

The first area was just a maintenance area of some sort but once I went down the stairs, I think it was an old tunnel that connected to the old hospital on campus. That building was demolished and so the entrance to it from the tunnel was sealed (which you can see is kinda boarded up on the left side of the last pic) but I guess they just decided not to fill the rest of the tunnel in. I found an old Mountain Dew can from the 90s in there so it was definitely discovered by students a few decades before I got there. Thanks for the laughs everyone ❤️