Southern route from Crystal Palace to Balham via Streatham and Tooting Commons.

When you come down along the side of Streatham Common, turn on to the common itself before you get to the A23. Then cross the A214 & A23 as a pedestrian - or join the A214's ASZ/ASL box from the Common when the lights are all on red, and then turn right in to the bus lane before exiting on to Natal Road.