5.0
(1)
25
riders
04:55
106km
1,210m
Road cycling
Tackle the difficult Swansea Marina to Devil's Elbow loop, a 65.8-mile road cycling route with 3971 feet of elevation gain in Bannau Brychei
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
82 m
Highlight • River
Tip by
36.4 km
Highlight (Segment) • Mountain Pass
Tip by
50.7 km
Highlight (Segment) • Viewpoint
Tip by
51.8 km
Highlight • Monument
Tip by
67.4 km
Highlight (Segment) • Climb
Tip by
106 km
End point
Parking
Way Types & Surfaces
Way Types
44.9 km
42.6 km
14.9 km
3.34 km
114 m
< 100 m
< 100 m
Surfaces
101 km
4.22 km
307 m
114 m
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Elevation
Highest point (440 m)
Lowest point (10 m)
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Weather
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Monday 25 May
31°C
15°C
0 %
Additional weather tips
Max wind speed: 8.0 km/h
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This route was planned by komoot.
This is a difficult racebike route, spanning approximately 106 km (66 miles) with a significant elevation gain of around 1,210 meters (3,970 feet). It's considered a 'Hard' road ride, demanding very good fitness due to its substantial climbs and descents, particularly the notorious Devil's Elbow.
On average, cyclists can expect to spend around 4 hours and 55 minutes (17,724 seconds) to complete the entire 106 km loop. However, this duration can vary significantly based on fitness levels, weather conditions, and time spent enjoying the scenic viewpoints.
The route officially begins at Swansea Marina. You'll find various parking options available in and around the marina area, though it's advisable to check for specific parking regulations and fees beforehand, especially for longer durations.
The route offers several memorable points of interest. You'll start at Swansea Marina, then encounter the challenging Bwlch Bryn-Rhudd and Glynneath Hill Climb. The highlight is undoubtedly the Devil's Elbow Climb from Heol Senni, which offers amazing valley views. Near its summit, you can also visit the ancient Maen Llia Standing Stone.
The Devil's Elbow is a particularly steep and brutal ascent, averaging around a 10% gradient over 1.8 to 2.9 km, with sections reaching 14% to over 30%. It's known for its 'punchey' sections between switchbacks. While some parts of the overall loop are well-paved, the road surface on the Devil's Elbow itself can be poor in places, with crumbling surfaces, requiring good bike handling skills.
No, there are generally no entrance fees or specific permits required for cycling on public roads and designated trails within Bannau Brycheiniog National Park (Brecon Beacons National Park). However, always respect local signage, private land, and follow the Countryside Code.
The best time to tackle this challenging route is typically during the late spring, summer, and early autumn months (May to September). During these periods, you're more likely to experience milder weather, longer daylight hours, and better road conditions. Winter cycling can be very challenging due to cold, wet weather, and potentially icy or snowy conditions on higher elevations.
While the route passes through some isolated areas, particularly around the Devil's Elbow, you'll find options for refreshments in towns closer to the start and end points, such as Swansea Marina. It's highly recommended to carry sufficient water and snacks, as facilities can be sparse on the more remote sections of the loop.
As a challenging racebike route with significant climbs and descents, this loop is generally not suitable for dogs, whether on foot or carried on a bike. The focus is on road cycling, and the terrain and distance are not conducive to a dog-friendly outing. If you're looking for dog-friendly options in Bannau Brycheiniog National Park, consider shorter, less technical trails.
Yes, the route does intersect with or run alongside several other paths for portions of its length. Notably, it covers sections of the Skewen Link (7%), EuroVelo 1 - Atlantic Coast Route - part United Kingdom 2 (4%), and National Cycle Network Route 4 (3%). You may also briefly encounter parts of the Cross Valley Route and Cambrian Way.
The route offers stunning and isolated scenery within Bannau Brycheiniog National Park. You'll experience rugged beauty, sprawling pastureland, and a sense of wilderness. As you ascend, particularly on the Devil's Elbow, you'll be rewarded with majestic views of the valley below. Expect to see an abundance of sheep, twisted trees, and open vistas that showcase the heart of Wales's natural beauty.