I think there’s probably about four stairwell entrances to the Severalls subway system - these can be spotted as they’ll have ‘Hard Hat’ signs above the door.

It’s quite easy to navigate down there - along with the signage on the spur tunnels, the main tunnels follow the main corridors and the grills in the roof give fleeting glimpses of the outside buildings so you can figure out where you are. These also provide good ventilation.

We even found the tunnels to the area under the stage - they were tunnels after all.

Anyway, back to the tour, and we soon found this room full of kitchen sinks. Which is odd - since Severalls has nothing... Except kitchen sinks!