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train tunnel

The Sunset Tunnel, known as the Duboce Tunnel (San Francisco).­

There is not enough clearance between the train and the tunnel walls, so you *must* hide in a small alcove when you see a train coming.­ The light at the end of the tunnel on this photo is actually a muni train coming.­

No trespassing! This is REALLY a DANGEROUS place!

For more information about this place, read: en.­wikipedia.­org/­wiki/­Sunset_­Tunnel

632-698 Duboce Ave, San Francisco, CA 94117, USA