Park in Ballycastle village.
From Ballycastle take the road through Ballyvoy and into Ballypatrick Forest. Exit the forest on the SE corner and take the faint track down trhough fields until you come to the road. Take left on the road and climb until the first road on the right. Fromthis junction take the off road trail that passes Loughareema and the back of Watertop Farm. COntinu on and follow the signs for Murlough Bay. At the car park at the top of the very steep hill, turn left on to the marked footpath to Fair Head and enjoy the views across to Rathlin and Scotland. Descend very carefull down Gray Man's path back bearing left at the bottom back to Ballycastle. The footpath from the bottom of the Gray Man's walk is mostly unrideable, but a walk at this point of the day is more than welcome!
A good 4 to 5 hours and views from the top are well worth it.
(Information and photos kindly supplied by Dave and Joey, Portstewart)