4.5
(127)
1,584
hikers
29
hikes
Bus station hiking trails around Aberbargoed Grasslands National Nature Reserve offer access to a diverse landscape characterized by expansive Welsh grasslands, marshy areas, and woodlands. The region, designated as a National Nature Reserve, features varied habitats and provides panoramic views from higher elevations. It is recognized for its ecological importance, including significant invertebrate populations and a rich array of wildflowers. The terrain includes both open meadows and paths through scrub and wooded sections.
Last updated: July 9, 2026
5.0
(1)
5
hikers
8.62km
02:23
160m
160m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
9
hikers
11.5km
03:07
170m
170m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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2
hikers
8.53km
02:20
130m
130m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(2)
11
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.5
(2)
12
hikers
9.39km
02:33
130m
130m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Beautiful area to explore on foot or on bikes with a visitor centre and playground area fun for all dogs welcome on leads. Appropriate footwear if going off track!
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The coal mining industry transformed the landscape of South Wales and one of the ways it did that was bringing about the construction of railways and, to span valleys, their accompanying viaducts. Hengoed's viaduct is vast and incredibly impressive. Thankfully, after 35 years of being completely closed, it's now a foot and cycle path, and part of the National Cycle Route 47.
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Sculpture at Parc Penallta top car park. Lovely position to see the sun set.
1
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Maesycwmmer (Welsh: Maesycwmer) is a village and community in the centre of Caerphilly County Borough in Wales, within the historic boundaries of Monmouthshire.
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Hengoed Viaduct offering a nice view over the valley and beyond.
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There are over 30 hiking routes accessible directly from bus stations in and around the Aberbargoed Grasslands National Nature Reserve. These trails offer a variety of experiences, from easy strolls to more challenging hikes.
The trails primarily traverse vast Welsh grasslands, but you'll also encounter marshy grassland, wet heath, scrub, and woodland. The geology features soils derived from boulder clays over Pennant Sandstone, offering a diverse walking surface. Some routes may include gentle ascents to provide panoramic views of the surrounding valleys.
Yes, there are several easy routes perfect for families. For example, the Trail by Cwm Darren Lake – Geese at Park Cwm Darren loop from Deri is an easy 4.3 km walk. Another good option is the Geese at Park Cwm Darren loop from Deri, which is 5.6 km and also rated easy. These routes are generally suitable for children and offer a pleasant outdoor experience.
Many trails in the area are dog-friendly, allowing you to enjoy the natural beauty with your canine companion. However, as the reserve is a National Nature Reserve and a Site of Special Scientific Interest, it's crucial to keep dogs under close control, especially during nesting seasons or when livestock are present. Always check local signage for specific restrictions.
While hiking, you might encounter the historic Hengoed Viaduct, an old railway structure that now serves as a scenic walkway and features the "Wheel o Drams" sculpture. From higher points, you can also enjoy panoramic views of the surrounding valleys and countryside. The reserve itself is a landmark due to its unique grasslands and biodiversity.
Yes, many of the routes accessible from bus stations are circular, allowing you to start and end your hike at the same point without needing to retrace your steps. Examples include the Hengoed Viaduct – Hengoed Viaduct loop from Ystrad Mynach and the Cwm Darran Park – Trail by Cwm Darren Lake loop from Deri.
The reserve is beautiful year-round, but spring and summer are particularly rewarding for wildlife spotting, especially for wildflowers and butterflies like the Marsh Fritillary. Autumn offers vibrant colors, while winter can provide crisp, quiet walks. Always check weather conditions before heading out, as some paths can become muddy after rain.
Aberbargoed Grasslands is a haven for wildlife, especially invertebrates. It's renowned for the endangered Marsh Fritillary butterfly, as well as other species like the small pearl-bordered fritillary and chimney sweeper moth. Birdwatchers might spot meadow pipits and skylarks. The grasslands also boast a rich array of wildflowers, including oxeye daisy, common knapweed, and various orchids.
The hikes vary in length, catering to different preferences. You can find shorter, easy walks around 4-6 km, such as the Trail by Cwm Darren Lake – Geese at Park Cwm Darren loop from Deri (4.3 km). There are also longer, moderate routes, like the Cwm Darran Park – Trail by Cwm Darren Lake loop from Deri, which is about 9.4 km.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 100 ratings. Reviewers often praise the sense of wild Wales, the diverse landscapes, and the tranquility found within the reserve. The accessibility from public transport is also a frequently highlighted positive aspect.
Yes, there are several moderate routes for those looking for a bit more challenge. For instance, the Hengoed Viaduct – Hengoed Viaduct loop from Ystrad Mynach is a moderate 8.4 km hike. Another option is the Hengoed Viaduct loop from Ystrad Mynach, which covers 8.5 km and is also rated moderate.


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