[RWD version 1 ] Since this trail is being used as an endurance course for a race later this year I decided to scout out the lie of the land. The trail starts on the promenade in Bray. Head up the well worn track to the top of Bray Head and continue on towards Ballynamuddagh. Just short of this headland there is an indistinct track heading up due south towards the top. The track swings to the right and continues down south west towards the main road.
On the little bypass road head right to the north meeting up with the main road. Continue on until you reach the roundabout.
Turn left on to the Souther Cross Road and left again to Kilruddery House and Gardens. Head towards the far carpark, at the far end of which there is an access gate to Delta Force (which is prohibited and probably locked). Use the access road to the left of that gate. This access road eventually veers off and up to the right (on the outward journey we were luckily able to use the "Hell & Back Course" direct route but that may not be available). Follow that track around the arrable fields until you reach the edge of the woods on your right.
At this road junction head up due west on to the Little Sugar Loaf. Follow this track all the way over to Kilmacanogue.
Cross the motorway and use the official Yellow Trail up and around the back of the Great Sugar Loaf, in a counter clockwise direction. There is quite a hard incline all the way until you reach the southern slope of the mountain. The return track of this Yellow Trail is narrow and quite rough underfoot. Back at Kilmacanogue retrace you steps until you reach the Vevay Road. At this point you can either follow your outward trail back to the start or take a shortcut back. Due to the torrential rain I had endured, I decided discretion was the best part of valour and took the shortcut home!