Tunnel Bob
Tunnel explorer in Wisconsin, US
📍 Madison, Wisconsin USA
Public Career & Background Dossier
Robert Gruenenwald, better known as Tunnel Bob, is a resident of Madison, Wisconsin, who is known for exploring the steam tunnels under the University of Wisconsin–Madison. He had said prior to 2008 that he has been exploring the tunnels since the 1970s and has asked for permission to volunteer to help maintain the tunnels but has been denied. Bob denies sleeping in the tunnels due to danger, stating that "you might wake up dead."
There are rumors that Tunnel Bob has a dungeon in the tunnel system but that is still unconfirmed. He has been cited and fined multiple times for "unauthorized prese
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