This is the Strada della Forra, and a tiny portion of the lower part features in Quantum of Solace. I did it from the top down, which is probably more spectacular as you can see it winding under itself and disappearing into tunnels below you. Very touristy, so can be very busy and safe passing places are few. We were lucky enough to be 'caught' by a solitary traffic light after the cafe, and being at the front of the queue meant we could enjoy the descent towards the lake. Very nearly got obliterated by an Italian going pretty fast on the wrong side of the road; one to look out for!