Hi Donagh
You have to take all directions from FB books etc with a grain of salt, some of this is more than a bit dated, and that's not just the directions!
Turn right at the B&B. Follow the road to the end. Walk across the low shoreline (good for bait, bring a fork) heading for the remains of an old building on the grass. You can fish straight out or better still head east to the end of the point and fish directly out onto the mud, aiming for the main channel. I must put a better description up on the website, thought it was better than it is... update on the way.
http://www.sea-angling-ireland.org/shor ... hannon.htm
The western mark is at the end of the track and keep walking. Bad road - mind your axles (and ankles!) Nice flat rocks on the point. Foul ground.
FWIW...