Waterloo Station Walkway Tunnel between Jubilee Line & Northern Line

This photo was taken underground at the Waterloo Station walkway tunnel between the Jubilee Line and Northern Line. To access this area, the simplest way would be to speak to the ticket office at Waterloo Station (via Bakerloo, Jubilee or Northern Line) and then buy a day pass for the London Underground, which will give you unlimited access to London's Tube system. After buying the pass at Waterloo Station, follow the signs to Exit 2 and then head toward the underground entrance of the Jubilee line. Use your ticket to go through these barriers and travel down the escalators into the tube system. At the bottom of the escalators, walk straight ahead and then you'll see another tunnel with signs that direct you toward the Northern Line. Continue and then eventually (reference the GPS coordinates) you'll find the moving walkway that's pictured in my photo.