Google map link
The route is essentially head for Treaddur Bay from Valley as usual. Take the left when you see the second White Eagle sign (not the first), you'll go past a big white school which should be on your right. You'll see a right turn nestled into a big of a dip (see pic below) follow this track which becomes more farm track like until you get to the parking point - the pile of gravel may be all gone by next time as the chap was using it to fill potholes on his drive.
Someone has said you can get Turbot off the mark in summer.
