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United Kingdom
Wales
South Wales

Cefn Fforest

The best walks and hikes around Cefn Fforest

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.

Best hiking trails around Cefn Fforest

  • The most popular hiking route is Hengoed Viaduct – Hengoed Viaduct loop from…

Last updated: June 22, 2026

5.0

(1)

5

hikers

#1.

Twyn Castell – Hengoed Viaduct loop from Gelligaer

8.62km

02:23

160m

160m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Hard
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Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Hard

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

5.0

(1)

9

hikers

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Tips from the Community

Peter Turner
July 9, 2025, Mynydd Machen Summit

Nice ascent from Crosskeys, but watch out for very overgrown pathways on the Machen side. Great views from the top!

1

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Lovely path to ride on. A gentle incline and suitable for most abilities

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Some great views of the valley below once you get on the viaduct

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Odin
April 6, 2025, Hengoed Viaduct

Great views nice ride

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Rowan
March 27, 2025, Hengoed Viaduct

better in the daytime but well lit at night.

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Colin Renwick
September 6, 2023, Hengoed Viaduct

Along with some magnificent views the end place Goytre Wharf definitely worth visiting

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Stop for a while and enjoy the views

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Adie
November 16, 2022, Hengoed Viaduct

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.

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Frequently Asked Questions

What kind of hiking trails can I find in Cefn Fforest?

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.

Are there any easy or beginner-friendly hiking routes in Cefn Fforest?

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.

Can I find circular walks in Cefn Fforest?

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.

What are the best times of year to go hiking in Cefn Fforest?

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.

Are there any trails with good viewpoints or natural landmarks?

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.

What do other hikers say about the trails in Cefn Fforest?

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.

Are there any longer, more challenging hikes available?

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.

Are there any family-friendly walking options in the area?

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.

What kind of natural features can I expect to see while hiking?

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.

Is there parking available near the trailheads?

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.

How long do hikes in Cefn Fforest typically take?

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.

Are there any historical sites to explore along the trails?

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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