Just out of desborough along the arthingworth road is a spot where doggers have started to go, they part up on the estate in desborough and walk over the bridge, which is the a14, turn left and along the track. Been a number of dogging events down there. Google earth / maps show you what it is like before all the trees were estabilished, really good long deserted track along the unlit side of the a14, close to kettering, rothwell and market harborough