Here is a description I found on another Forum
You change sides right at the start, on the turn out of the station. If you're on the left hand station, you'll be on the right hand track for the rest of the ride and vice versa.
The switch happens because the tracks turn 180 degrees in opposite directions, throughout the rest of the ride you stay on the same side, as both tracks take the rest of the corners side by side.
As for Pictures, none that I know of but find a pov and you might see.