There's another one, too but I only remember the chorus:

Down below,down below, It's dark, but it's home to me, you know. It's the only place I find I can get some peace of mind. I'm glad [or something like that] I'm working down below.

David Jones sang this at the Eagle Tavern in NYC, back in the 70s when there was an Eagle Tavern in NYC. Maybe Liam's Brother remembers more of it.