4.5
(167)
1,947
hikers
130
hikes
Hiking around Cefn Fforest offers diverse terrain within a serene and picturesque landscape. The region is characterized by lush greenery, varied ecosystems, and well-maintained trails. It features elevated areas like Twmbarlwm and Mynydd Machen, providing expansive views over the surrounding valleys and the Severn Estuary. The Cefn Fforest Eco Park itself provides a range of paths suitable for various fitness levels.
Last updated: June 22, 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.
12
hikers
18.8km
05:31
520m
520m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.3
(3)
8
hikers
23.6km
06:50
600m
600m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
4
hikers
9.21km
02:29
120m
120m
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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Nice ascent from Crosskeys, but watch out for very overgrown pathways on the Machen side. Great views from the top!
1
0
Lovely path to ride on. A gentle incline and suitable for most abilities
0
0
Some great views of the valley below once you get on the viaduct
0
0
Along with some magnificent views the end place Goytre Wharf definitely worth visiting
0
0
Hengoed Viaduct is an old railway viaduct that’s now a walkway and extension of NCN Route 47. It offers a nice view over the valley. The "Wheel o Drams" sculpture (locally known as "The Stargate") by Andy Hazell, is formed from a circle of coalmining dram trucks.
1
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Cefn Fforest offers a wide variety of trails, from leisurely strolls to more challenging ascents. There are nearly 140 routes available, with 60 easy, 69 moderate, and 9 difficult options. The terrain is diverse, featuring lush greenery, varied ecosystems, and prominent hills and valleys.
Yes, Cefn Fforest has 60 easy hiking routes suitable for beginners or those looking for a gentle walk. These trails often feature well-maintained paths within the Cefn Fforest Eco Park, allowing you to enjoy the serene landscapes without significant challenges.
Many of the trails in Cefn Fforest are designed as loops, offering circular routes that bring you back to your starting point. An example is the moderate Hengoed Viaduct – Hengoed Viaduct loop from Pengam, which covers 9.2 km and takes about 2 hours 29 minutes.
Cefn Fforest experiences a mild and temperate climate, making it suitable for outdoor activities throughout the year. The park's beauty transforms with the seasons, offering vibrant colors in spring and summer, crisp air in autumn, and peaceful, sometimes snow-covered, paths in winter. Each season provides a unique hiking experience.
Absolutely. The region is known for its elevated terrain offering expansive views. You can hike to Mynydd Machen Summit for glorious views over Newport, Cardiff, and the Severn Estuary. Another significant site is Twmbarlwm Hill and Iron Age hillfort, which provides stunning panoramic views of the Severn Estuary.
The routes in Cefn Fforest are highly rated by the komoot community, with an average score of 4.4 stars from over 140 reviews. Hikers often praise the diverse terrain, the lush greenery, and the well-maintained paths that cater to various fitness levels.
Yes, for experienced hikers seeking a challenge, there are 9 difficult routes. One such option is the Mynydd Machen Summit – Hengoed Viaduct loop from Hengoed, a demanding 23.6 km trail with significant elevation changes, offering rewarding views from Mynydd Machen.
While the Cefn Fforest Eco Park itself offers gentle walks suitable for families, nearby Fforest Fawr, located near Castell Coch, provides several short woodland walks, including a sculpture trail designed for families. The diverse terrain in Cefn Fforest also means many easy and moderate routes can be enjoyed by families.
Cefn Fforest is characterized by a serene and picturesque ambiance with abundant lush greenery. You'll encounter diverse flora and fauna, varied ecosystems, and the natural beauty of hills and valleys. The area's beauty transforms with the seasons, offering unique natural displays year-round.
While specific parking details for every trailhead vary, the Cefn Fforest Eco Park and many popular starting points for trails like the Hengoed Viaduct loops are generally accessible. It's advisable to check specific route details on komoot for parking information related to your chosen hike.
Hike durations vary significantly depending on the route's distance and difficulty. Easy walks might take an hour or two, while moderate trails like the Penallta Park signpost loop from Pengam (11.8 km) can take around 3 hours 11 minutes. More difficult routes can extend to 5 hours or more.
Yes, the region boasts historical interest. A notable site is the Twmbarlwm Hill and Iron Age hillfort. This ancient hillfort offers a glimpse into the area's past, combined with challenging ascents and panoramic views.


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