Despite seeing this promontory daily from where I live I only walked this hill last year for the first time.
Having parked on the Leighry road at C703 317 A I went through the car barrier and onto the path. I decided to take the long the straight path uphill heading South South West, at its end you'll reach a T-junction, take a right where it turns into a logging track.
You can then pick your way across here East-bound where you can either skirt around the trees, take a path through or make your own way. Follow the cliff top path along as far as you want to go, while enjoying the expansive view laid out in front of you. I carried on beyond the lake and if you're lucky you might get treated to a display from either the local glider club or birds of prey circling above as I did
I returned by mostly retracing my steps however there is an obvious well marked path through the forest to the forestry maintenance track at the bottom if you want to try another route. From here it is only a few hundred yards back to the car. A short gentle walk with good ground underfoot and no slopes to trouble most people. It offers a great reward of a view from Derry, Donegal, the North coast and some Scottish Islands on a very clear day Linkback: https://mountainviews.ie/summit/860/comment/15209/