There is no town called Arsilah (it appears several places in the writeup). I think you mean Asilah. I went there a few months ago and the road is horrible, but drivable in dry conditions. Checkout openstreetmaps.com to see the way in that I mapped. I also confirmed that lat/long on your page.
RobH.
Something is not right. This message is just to keep things from messing up down the road