Walk starts at the Herbert's Quarry carpark. The quarry is only a short walk but worth taking a look around. There are spectacular views from here, looking over to Llangadog, Llandovery and Myddfai. The are also information boards at the carpark which informs you of the history of the quarry. An audio trail is also available for your mobile phone. The walk is guided throughout with markers. Should only take a short while to walk around.
Ok, so back to the original walk. From the cark park there is a wooden post at the foot of the mountain. The path isn't very well defined, however if you are following my GPX route on OS maps it will be easy peesy. You are heading obviously for the summit of the mountain. Its rocky at the summit so take care as you reach the top. There is a plateau and you should be able to see the large cairn in the distance (if it's a clear day that is) and if your eye sight is better than mine the OS Triangulation Pillar next to it, Garreg Lwyd.
If your anything like me you'll stop a while at the trig pillar. The 360 view is amazing! It was very windy up there today and absolutely freezing! From here you have a descent down to the valley. Again quite rocky so take care. Once you get to the bottom it becomes marshy and boggy. I found this out the hard way first time I did this walk and wore trainers! The cold weather was in my favour today as the ground was frozen solid. In the spring, summer and early autumn there are lots of sheep here and many over the next summit, which hide behind the quarry stones and sink holes so beware just incase you have your dog or dogs with you as they can run out at the last minute. After the next ascent you are at the summit of Foel Fraith. This is a really interesting descent as the landscape starts to become more interesting with sink holes and large rocks. You can also start to see the peak of Picws Du in the distance.
Your next ascent will take you up to the summit to join the Beacons Way long distane path. The are no signposts, this area is very remote and its very rare I see anyone on this walk. Avoid the quarry climb, if you walk in a southernly direction you can by pass the hassle of all the stones, and if like me you have a big clumsy dog, they'll thank you for it. One your at the summit walk in a northerly direction towards Garreg Las. you will join the Beacons Way as you hit the ridge line. The views from this ridge line are amazing. You will now see the escarpements of Cefn Cylchau to the west.
After approximately a mile you will see two huge cairns (Carnau'r Garreg Las). Its from here you descend again before the final ascent up to turn around point at OS Trig Pillar Carreg yr Ogof. You will definitely want to stop a while here as its the best view of the whole walk. There are usually ponies grazing here and sheep but Ive havnt seen sheep here in the winter. There is also a cave around somewhere, as marked on the OS map. But I'm yet to find it. Ive wondered that area often with my OS map app. Its then turn around and follow the route back to the carpark. I have an extended route on my Brecon Beacons National park page. It takes in a third OS triangulation pillar Bwlch y Ddeuwynt and its a circular route. Hit the button below for the extended GPX route.