Best mountain peaks around Hirwaun are situated in Rhondda Cynon Taf, Wales, serving as a gateway to the Brecon Beacons National Park. The area is bordered by significant uplands, offering a range of natural landscapes. This location provides access to various peaks, from prominent summits to expansive upland commons. The region's geography makes it a base for exploring diverse mountain terrain.
Last updated: June 20, 2026
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Cribyn is the smallest of the Brecon's 'big Three, but it is a shapely top and should be included in any climb up here.
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Less busy than the two peaks further West and with a similar view, especially looking north, maybe the nicer option for a break.The path from here over the ridge is great.
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The highest peak in south wales and still a very easy one to reach with a short walk up the too straight and too perfect path from the parking. The view is well worth it and if you choose an exotic time or less good weather it is even relatively quiet up here. National Trust put a sign on top of th cairn which is the standard selfie spot here now - gives a bit mixed feelings as the cairn is an ancient burial site.
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Only sligthly lower tha Pen y Fan and close to the 'bigger brother' these two peaks can ideally be combined. From a distance even a bit easier to recognize due to the pronounces plateau on top.
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๐๐ซ๐๐ข๐ ๐๐๐ซ๐ซ๐ข๐ -๐๐ฅ๐๐ข๐ฌ๐ข๐๐ & ๐ ๐๐ง ๐ ๐ซ๐ฒ๐ง๐ฒ๐๐ก ๐๐๐ญ๐ฎ๐ซ๐ ๐๐๐ฌ๐๐ซ๐ฏ๐ ๐๐๐๐โฐ๏ธ Craig Cerrig-gleisiad is an subsidiary summit of Fan Fawr in the Fforest Fawr section of the Bannau Brycheninog National Park. (The Brecon Beacons National Park). Enclosed within an incredible atmospheric amphitheatre thatโs been created by the soaring cliffs of Craig Cerrig-Gleisiad, of which is a incredible size of craggy mountain landscape, that lays just only a few hundred metres up from the main A470 road. The โCraig Cerrig-Gleisiadโ side actually makes up half of the Dramatic landscapes created by glaciers carved where out of this valley during the last ice age. Craig Cerrig-Gleisiad and Fan Frynych National Nature Reserve steepness to the rocky slopes, sharp escarpments and crags are home to rare arctic-alpine known plant, these are their southernmost location in the UK and are NOT found again until the Alps!!. ๐ ๐๐ง ๐ ๐ซ๐ฒ๐ง๐ฒ๐๐ก is the actual summit of the nature reserve an is at a height of (๐๐๐๐)
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The Diving Board on Fan y Big is one of the most photographed locations in the Brecon Beacons. The views over towards Cribyn and Pen Y Fan are super good, as are the views down towards the Gap. It is great to come up here on a winter weekday, when it is a bit quieter too. It is also a very popular spot for your sunrise and sunset shots. It is easier than it looks to get here, and it doesn't matter which way you come up; the effort is absolutely well worth it.
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The walk to the top of Fan y Bรฎg. takes in some of the most incredible ridge lines in the Brecon Beacons. Itโs a steep start, but then you have around 6km of easy ridge line walking, with simply sensational views all the way. Reaching the top is the icing on the cake, and if you luck out with good conditions, with breathtaking views itโs really a very hard spot to leave. As well as the views, you'll also have the chance to step out onto the diving board, one of the most photogenic spots in the area.
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Corn Duย is a summit of the twin topped Pen y Fanย and the second highest peak in South Wales.ย The summit is often crossed on the way to Pen y Fan, and forms part of a well-known circuit of the Beacons.
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The region around Hirwaun offers several notable peaks. Pen y Fan is the highest summit in South Wales, known for its distinctive layered profile and panoramic views. Corn Du summit is often climbed alongside Pen y Fan, offering spectacular vistas. Another popular spot is Fan y Bรฎg Summit and Diving Board, which features stunning panoramas and a unique rock formation.
From peaks like Pen y Fan and Corn Du summit, you can expect breathtaking panoramic views across the Brecon Beacons National Park, and on clear days, even as far as the Severn Bridge. Hirwaun Common, while less strenuous, also provides expansive views of the entire Brecon Beacons range. Cribyn Summit offers dramatic views over Pen y Fan and towards the Cambrian mountains.
Yes, the area around Craig y Llyn, located to the west of Hirwaun, is historically significant. Iron Age and Bronze Age artifacts have been discovered there, indicating ancient human activity in the uplands.
While many peaks offer challenging routes, Hirwaun Common provides a more accessible option for those seeking wide panoramas without a strenuous climb. Its relatively flat top and minimal ascent from certain points make it suitable for various fitness levels. Even Pen y Fan has routes catering to different abilities, from casual day-trippers to experienced hikers.
The difficulty levels vary. Peaks like Pen y Fan, Corn Du summit, and Cribyn Summit offer intermediate to challenging ascents, often involving steep sections. However, there are also easier paths to the summits, and areas like Hirwaun Common provide less strenuous options for enjoying the mountain scenery.
Pen y Fan is notable for its distinctive layered profile formed from red sandstone. The steep rocky slopes and crags around Fan Frynych Trig Point are home to rare arctic-alpine plants, which are at their southernmost location in the UK, alongside a rich variety of wildflowers, mosses, and liverworts.
The mountains around Hirwaun can be enjoyed year-round, but spring and summer offer the most stable weather conditions for hiking. Autumn provides beautiful foliage, while winter can be challenging with rapidly changing weather, strong winds, and potential for ice and snow, requiring appropriate gear and experience.
Weather conditions in the Brecon Beacons can change very rapidly. Visibility can quickly decrease in fog, and strong winds are common, especially on exposed summits like Corn Du summit. Always check the forecast before heading out, wear appropriate layers, and be prepared for sudden shifts in temperature, rain, or wind.
Beyond hiking, the area around Hirwaun offers a variety of outdoor activities. You can explore numerous hiking trails, enjoy mountain biking routes, or take on challenging road cycling routes. The proximity to the Brecon Beacons National Park makes it an excellent base for diverse adventures.
Yes, there are many excellent hiking trails. For instance, you can find routes like the 'Elidir Trail to the Upper Gushing Falls' or the 'Llwyn-onn Reservoir loop'. These are just a few examples of the diverse hiking options available around Hirwaun, catering to different distances and difficulty levels.
Yes, there are options suitable for families. While some peaks like Pen y Fan can be challenging, there are also easier routes and less strenuous areas like Hirwaun Common that offer rewarding views without demanding climbs, making them suitable for families with varying fitness levels. Always choose trails appropriate for the youngest or least experienced member of your group.
The mountains in this region, particularly in the Brecon Beacons, are primarily composed of Old Red Sandstone, which gives peaks like Pen y Fan their distinctive layered appearance and reddish hue. This geological formation contributes to the dramatic escarpments and crags found throughout the area.


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