A classic site....... I make it about a seven and a half mile round walk from the Loch Brittle campsite, but the loch-side walk - with The Cuillin towering above and numerous streams discharging into the loch as waterfalls - is well worth doing for itself, never mind with the prize of megaliths at the end. Think of it as a lay pilgrimage, or something like that.
The route is pretty straightforward until the final section, near Creag Mhor, where the path veers inland towards a drystone wall. I, er, sort of lost it here, neglecting to take a bearing on Loch na h-Airde until it was too late. Anyway, persevere, passing an abandoned croft which may well bring a lump to your throat (it did mine) and find the loch best you can.
The chamber sits above the northern shore of this loch and, although roofless, still has a facade and well preserved entrance passage. To be honest, although gloriously unkempt with the facade stones leaning this way and that, it's virtually intact - save the roof.
And yes, there is a lot of litter around, which does detract somewhat from such a truly isolated spot..... but closer inspection revealed this to be of the marine variety, whether chucked overboard or washed in on a storm, I couldn't say.
Visited this site in Summer of 1997 and must agree with IronMan post above - there was quite a bit of litter for such a remote site. The roof was considerably caved in and was a larger orifice than the entryway. The hike to the site is definitely a long one, but well worth it in good weather. I also checked out the nearby ("neolithic flint knapper") cave which is more of a shallow, shetlered room that a cave. I will attempt to post a pisture of the cave here (though as it's not actually part of or immediately adjacent to the Rubh an Dunain site, it may be scrubbed)
I last visited the site in Spring 1997. It's depressing to see such a remote, innaccessible site like this being the victim of litter. Bottles, bags, the remains of several campsites, nylon rope and plastic barrels presumably from the fishing boats are scattered all over the area. The site itself is quite small, the roof has partially collapsed, but it is worth the visit. The long walk down from Glenbrittle is fantastic, and the return journey is made even more rewarding by the view of the Cuillin. The area is well worth exploring further for other remains including a cave used by neolithic flint knappers and Iron Age smiths, old hut circles and the ruined Dun that gave the point its name.