4.5
(409)
2,984
hikers
91
hikes
Walking routes in St Harmon, Wales, are set within a landscape of rolling hills and river valleys. The region is located near the Cambrian Mountains and the celebrated Elan Valley, offering a variety of terrains for hikers. Routes often follow riverside paths or climb to viewpoints over the surrounding countryside.
Last updated: May 12, 2026
4.9
(11)
41
hikers
8.11km
02:13
120m
120m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.8
(4)
22
hikers
16.2km
04:36
330m
330m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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5.0
(2)
17
hikers
26.1km
07:08
410m
410m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(3)
21
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.3
(3)
40
hikers
11.7km
03:05
110m
110m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Sorted me out with fresh brake pads. Proper bike shop with almost everything you’d need.
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0
Basic gift shop and toilets, along with a cafe.
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A good way into the valley. A flat out gravel surface that winds around the dams for miles
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0
Yes, there are over 90 marked hiking trails in the St. Harmon area. The network includes 32 easy routes perfect for a gentle walk, 50 moderate trails for a good day out, and 13 difficult hikes for those seeking a challenge in the Welsh hills.
The trails around St. Harmon are highly regarded by the komoot community. Hikers often praise the stunning views across the Cambrian Mountains, the peaceful riverside paths along the Wye and Marteg, and the dramatic scenery of the Elan Valley's Victorian dams and reservoirs.
The area is well-suited for beginners, with many shorter loops available. A great option is the Rhayader Town Centre – Afon Elan Suspension Bridge loop from Rhayader. This moderate walk is just over 8 km and offers lovely river views without too much strenuous climbing.
Many trails in the St. Harmon area are suitable for hiking with dogs. However, this is a rural area with active farmland and protected nature reserves. Always keep your dog on a lead, especially near livestock and during bird nesting season (typically March to July). Be sure to check specific rules for areas like the Gilfach Nature Reserve.
The Elan Valley is particularly family-friendly. The main Elan Valley Trail follows a former railway line, making it relatively flat and accessible for pushchairs and younger children. Additionally, the Gilfach Nature Reserve offers an Easy Access Trail, ensuring everyone can enjoy the scenery.
For waterfalls, head to the Gilfach Nature Reserve. The River Marteg tumbles through the reserve, creating a series of picturesque waterfalls and cascades. The Marteg Valley Trail within the reserve is an excellent way to experience this beautiful feature of the landscape.
Yes, for those looking for a full-day challenge, the Radnorshire Millennium Stones – Elan Valley Visitor Centre loop from Rhayader is a great choice. This moderate 12 km route takes you through varied landscapes. For an even more demanding trek, consider a long loop around the reservoirs in the Elan Valley.
The terrain is quite varied. You can expect everything from gentle, flat riverside paths along the Wye and Elan to rolling hill paths with some steep sections. Many trails climb to viewpoints, rewarding you with expansive views of the high moorland and green valleys characteristic of Mid Wales.
The region is rich in wildlife. Keep an eye out for red kites soaring overhead, which are a common sight. In the oak woodlands and along rivers like the Marteg, you might spot dippers and pied flycatchers. The River Wye is also known for being home to otters and kingfishers.
Hiking is possible year-round, but late summer is particularly beautiful when the hills are covered in a blaze of purple bell heather and yellow gorse. Spring offers lush green landscapes and vibrant wildflowers in the meadows. Always check the weather forecast before you go, as conditions in the Welsh hills can change quickly.
St. Harmon is a rural village, and public transport options can be limited. The nearby town of Rhayader has better bus connections. From there, some trailheads, particularly those around the Elan Valley Visitor Centre, may be accessible. However, for maximum flexibility in exploring the wider area, traveling by car is recommended.
The Gilfach Nature Reserve is a must-visit. This spectacular 166-hectare reserve, a former hill farm, features several waymarked trails through ancient oak woodlands and along the River Marteg. For a different experience, the Cors y Llyn National Nature Reserve offers a peaceful walk through a rare basin mire habitat.


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