http://maps.google.com/?ie=UTF8&z=16&ll ... 20084&om=1
It starts out as two way (well, where I started anyway) but quickly changes to one way. Lanes are about 1.5 standard lane, and there's plenty of twisties to be done. It really reminds me of Galston Gorge, but obviously one way, and without the annoying hairpins. You also get some nice waterviews on the way. Only major problem is having a learner ahead of you (

Anyone else done it before?