Now how many people ("kids") have wanted to do this.  Yes, the switch does operate.  Julio is satisfying his childhood fantasy by rerouting the main line onto the siding.  Note the tracks to nowhere in the background.  The very next tunnel 100yds to the north of the trestle caved in during an earthquake (1970's?) and is now blocked entirely from both ends.  We later learned that the tunnel caved in somewhere in the middle and safety crews blocked both entrances to keep tourists out.