Visited 09.09.2014.
As mentioned below, access to the site is very easily up a gracelly track with a small car park with a very short walk.
It was a beautiful evening when I visited, the evening sunshine was slightly hazy so my view from the tope of the site was restricted but it added a wonderful atmosphere.
The ramparts are imp[ressively well preserved and much bigger than I was expecting. I visited with my father and we had a good look around the place, only bumping into one other person.
Well worth checking this plce out!