Starting point is at the forest entrance next to the Yellow Water river, where there is room for a number of cars to park.
Head into the mature pines and pick up an Ulster Way marker, a turn right brings a footbridge over the Yellow Water. The forest track dropped, with fading bluebells in view and the voices from the nearby picnic area out of sight.
There follows quite a dander along the Ulster Way through Rostrevor Forest. Areas of clearfell bring views up steep rocky hillside and beyond Carlingford Lough to the heights of Slieve Foye and the Cooleys. The forest did provide welcome shade from a strong and unrelenting sun, although the air between the trees shimmered with an oven like heat. Insects and seeds drifted on what little air there was.
Ignore the first turn uphill to the left and continue downwards until nearly at the outskirts of Rostrevor, with the sunlight glimmering on the waters of Carlingford Lough. Can now take the turn uphill - eventually! This rises quickly and is unrelenting as rise to over 300m.
The forest track ends in a large gravelled area. At the SE corner of this area a rough track is just visible heading up through the trees. There is a raised wooden pathway for a few hundred feet. This has fallen into disuse and even through is several feet above ground is being swallowed up by vegetation. A wonderful experience walking across not knowing if will stand the test but did well. There follows a single track which rises steeply through the forest, pretty muddy and a number of fallen trees to negotiate.
At 360m a fence is reached at the forest boundary and can be crossed at a stile. Summit is straight ahead over pretty rough ground, passing some large boulders and reaching a small cairn. Views reach east over the Irish Sea to the Isle of Man, south to the Cooleys, west to the Sperrins and north to the Belfast Hills past the bulk of Shanlieve. The pond at Kilbroney Red Bog provided a striking blue in contrast to the earthy hillsides around.
Return to savour the single track and boardwalk a second time! On reaching the gravel area there is an obvious track heading through the trees NE. This is pretty damn muddy in places and has the remains of other raised boardwalks. Pass the pond and a number of dragonflies and drop to reach a gravel track.
This brings the Yellow Water at a ford created by a jumble of large boulders, was able to walk across the bed of the river as it was pretty low. Descend steeply on forest track and at a bend follow a track into the trees to descend close to the river itself. The track sticks close to the river as it drops, giving the sense of a real mountain river with huge boulders piled along its way.
Arrive back at where found the Yellow Water earlier in the day and return to the forest entrance - job done!