Bwlch Bryn-Rhudd, Devil's Elbow & Glynneath Hill from Dan-yr-Ogof
Bwlch Bryn-Rhudd, Devil's Elbow & Glynneath Hill from Dan-yr-Ogof
30
riders
Bwlch Bryn-Rhudd, Devil's Elbow & Glynneath Hill from Dan-yr-Ogof
02:31
46.5km
830m
Road cycling
Embark on a challenging racebike journey through the rugged landscapes of Bannau Brycheiniog National Park with the Bwlch Bryn-Rhudd, Devil's Elbow & Glynneath Hill route. This moderate 28.9 miles (46.5 km) ride demands your best, featuring a significant 2733 feet (833 metres) of elevation gain. You will experience the
Last updated: April 23, 2026
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Waypoints
Start point
Parking
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1.48 km
Bwlch Bryn-Rhudd
Highlight (Segment) • Mountain Pass
On the smooth wide road you inch up between the high valley sides that funnel you towards the summit and once you’re pedalling comfortably you should be able to maintain a similar speed all the way to the end. As the road sweeps round to the right you’ll notice the slight V cut in the horizon ahead, this is your goal and is reached after a couple of slight kinks in direction and an ever so slightly tougher finale
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15.8 km
Devil's Elbow Climb from Heol Senni
Highlight (Segment) • Viewpoint
To start, leave the small village of Heol Senni, follow the river south, and begin the climb adjacent to a right-hand junction. The narrow strip of tarmac climbs and winds through twisted trees either side, easing a pinch as you cross the first of two cattle grids.
You feel like you’re in a truly isolated wilderness here as the road gradually climbs steeper up to two wicked hairpins: first sharp left and then sharp right, with a remorseless stretch in between them. Round the second hairpin and it eases to finish at the brow where the beauty of your surroundings will soon sooth any pain.
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32.5 km
Glynneath Hill Climb
Highlight (Segment) • Climb
Once you’ve negotiated the junctions in Glynneath the road bends right then rears up to disappear into the cover of trees where, with the last house behind you the reasonably busy road, lined with thick foliage either side, settles into its solid 6% gradient.
Heading in a direct straight line there’s no let up in the degree of the slope, nor in the amount of trees that obscure the view you are working so hard to enjoy. At roughly half distance there’s a left hand kink in the road and you enter the next long straight that will take you to the summit.
Ahead almost the entirety of the remainder of the climb is in view which gives you an idea of the work needed but could also be a hefty psychological blow.
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46.5 km
End point
Parking
Way Types & Surfaces
Way Types
29.5 km
15.9 km
1.10 km
Surfaces
43.5 km
2.52 km
455 m
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Elevation
Highest point (440 m)
Lowest point (70 m)
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Weather
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Tuesday 19 May
14°C
8°C
39 %
Additional weather tips
Max wind speed: 27.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
How long does it typically take to complete this road cycling route?
The route is estimated to take approximately 2 hours and 31 minutes to complete. This is for a 'Hard road ride' and assumes a very good fitness level due to the demanding climbs.
Is this road cycling route suitable for beginners?
No, this route is characterized as a 'Hard road ride' requiring 'very good fitness'. It features significant climbs, including the notoriously steep Devil's Elbow Climb from Heol Senni with gradients up to 25%, making it unsuitable for beginners.
What is the terrain like on this cycling route?
The route features varied road surfaces and significant climbs. The Devil's Elbow Climb from Heol Senni has sections with gradients reaching 25% and can have crumbling, narrow road surfaces. Bwlch Bryn-Rhudd is an undulating, exposed common land area where strong winds can add to the challenge.
Where does this road cycling route start?
The route starts from Dan-yr-Ogof. You'll find parking options available in the vicinity of Dan-yr-Ogof, which serves as a convenient starting point for this loop.
What scenic highlights can I expect along the route?
You'll experience beautifully rugged scenery characteristic of hidden Wales and the stunning landscapes of Bannau Brycheiniog National Park. Key highlights include the challenging Devil's Elbow Climb from Heol Senni, the undulating Bwlch Bryn-Rhudd, and the Glynneath Hill Climb.
Do I need any permits or pay entrance fees to cycle in Bannau Brycheiniog National Park?
Generally, there are no specific permits or entrance fees required for cycling on public roads within Bannau Brycheiniog National Park. However, always respect local regulations and private land notices.
Is this road cycling route dog-friendly?
While dogs are generally welcome in Bannau Brycheiniog National Park, this specific route is a road cycling trail. It's not typically suitable for dogs due to the nature of road cycling and potential traffic. If you bring a dog, ensure it's safely secured and consider alternative walking trails.
What is the best time of year to cycle this route?
The best time to cycle this route is typically during the warmer, drier months to avoid the worst of the weather. However, varied weather conditions are possible even in summer, and strong winds can be a factor on exposed sections like Bwlch Bryn-Rhudd.
Are there places to eat or drink near the start of the route?
Yes, Dan-yr-Ogof is a popular area, and you can usually find cafes and pubs nearby to refuel before or after your ride. It's always a good idea to check opening times in advance.
What should I be aware of regarding livestock on the route?
You may encounter livestock, particularly sheep, on the road, especially in common land areas like Bwlch Bryn-Rhudd. Always ride cautiously, be prepared to slow down, and give animals plenty of space.
Does this route connect with other well-known paths?
Yes, sections of this route briefly intersect with other paths. You'll find it crosses parts of the Cambrian Way, Beacons Way, South Wales Traverse, Henrhyd Falls and Nant Llech walk, and Blaentwyni Rd.