4.7
(9)
637
riders
96
rides
Road cycling routes around Nantglyn traverse a rural landscape in Denbighshire, Wales, characterized by rolling moorland, deep forests, and serene lakes. The area is situated near the foothills of Mynydd Hiraethog and offers access to the Clwydian Range, providing varied terrain for cyclists. Valleys and reservoirs like Llyn Brenig and Alwen Reservoir are prominent features, contributing to both scenic views and challenging ascents.
Last updated: April 29, 2026
16
riders
64.3km
03:17
940m
940m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
3
riders
73.1km
03:55
1,400m
1,400m
This difficult 45.4-mile road cycling loop offers challenging climbs, stunning views of Cadair Idris, and a visit to historic Denbigh Castle

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5.0
(1)
27
riders
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
5.0
(2)
31
riders
21.8km
00:59
210m
210m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
22
riders
31.3km
01:28
310m
300m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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A lovely small town with a couple of spots to stop on the bike (pubs and cafes). Undulating terrain so make sure you're leaving the right way to avoid having to come back up the road you've just cycled down!
0
0
A lovely market town with pubs and shops and bakeries. Hilly routes into town but a number of good places for a stop mid ride.
0
0
Ruthin is a market town and community in Denbighshire, Wales, in the south of the Vale of Clwyd. It is Denbighshire's county town. The town, castle and St Peter's Square lie on a hill, skirted by villages such as Pwllglas and Rhewl. Make sure you stop at the tower clock.
3
0
Smashing little town centre. Good to ride in with some grade listed building not forgetting the pubs.
0
3
The castle passed between various owners in the first half of the 14th century, before coming under the control of the Mortimer family. Meanwhile, the walled town had proved impractical to live in, and a newer, much larger, settlement developed outside the defences. In 1400, the walled town was raided during the GlyndΕ΅r Rising, although the castle itself remained secure throughout the rebellion. During the Wars of the Roses, Denbigh was attacked by Lancastrian forces; the walled town was attacked and burnt. In the aftermath, the old town was largely abandoned by its inhabitants, the walled area becoming an extension of the castle's defences.
3
0
Denbigh Castle and town walls (/ΛdΙnbi/ DEN-bee; Welsh: Castell Dinbych a waliau tref [ΛkastΙΙ¬ ΛdΙͺnbΙ¨Ο]) were built to control the lordship of Denbigh after the Conquest of Wales by Edward I of England in 1282. The lands were granted to Henry de Lacy, Earl of Lincoln, who began to build a new walled town, colonised by immigrants from England, protected by a substantial castle and surrounded by deer parks for hunting. The work had not been completed by 1294, when the Welsh temporarily seized the castle during the Madog ap Llywelyn revolt. The defences continued to be improved, although the castle was not completely finished by the time of Henry's death in 1311.
3
0
Wonderful little town centre. Good to ride in with some grade listed building not forgetting the nice coffee and cakes shop
4
0
Road cycling around Nantglyn offers a varied landscape, from the tranquil valleys and expansive moorland of Mynydd Hiraethog to the undulating trails around Llyn Brenig and Alwen Reservoir. You'll encounter both challenging ascents and scenic stretches, with views extending to the Clwydian Range.
Yes, the region is known for its challenging ascents. A notable climb is 'The Road to Hell from Denbigh via Nantglyn,' which features a significant vertical gain over 10.9 km. Routes like Brenig Loop also offer substantial elevation, with over 1,300 meters of climbing.
The routes often pass through picturesque landscapes. You can enjoy views of the Clwydian Range, the serene waters of Llyn Brenig and Alwen Dam, and the expansive Denbigh Moors (Mynydd Hiraethog). Some routes also offer glimpses of historic sites like Iron Age hillforts.
While many routes offer challenges, there are easier options available. For instance, the Denbigh Castle and Town Walls loop from Denbigh is an easy 21.8 km trail. The marked cycle routes around Llyn Brenig and Alwen Reservoir also cater to different fitness levels, including paved sections suitable for families.
The road cycling routes around Nantglyn are highly regarded by the komoot community, holding an average rating of 4.7 out of 5 stars from over 9 reviews. Cyclists frequently praise the varied terrain, scenic views, and the rewarding challenges offered by the region's climbs.
Yes, many routes in the area are designed as loops. Examples include A loop around the Clocaenog Forest from Denbigh Castle to Llyn Brenig and Ruthin Town Centre β Denbigh Castle and Town Walls loop from Denbigh, which connect historic towns and natural landscapes.
Route lengths vary significantly. You can find shorter loops like the Denbigh Castle and Town Walls loop from Denbigh at 21.8 km (approx. 1 hour), up to longer, more demanding rides such as the Brenig Loop, which covers over 73 km and can take more than 3 hours to complete.
While Nantglyn is a small village, parking options are generally available in nearby larger towns like Denbigh and Ruthin, which serve as common starting points for many routes. Specific parking information for individual routes can often be found in their detailed descriptions on komoot.
Nantglyn itself has limited amenities. However, routes that pass through or near towns like Denbigh and Ruthin, or those traversing the Clwydian Range, often provide opportunities for cafΓ© stops and pubs. It's advisable to check route details for specific refreshment points.
The road conditions in Denbighshire are generally suitable for road cycling, with a mix of quiet rural roads. Around areas like Llyn Brenig and Alwen Reservoir, you'll find both paved and some gravel options, catering to different preferences. Always be mindful of local road surfaces, especially in rural areas.
Public transport options directly to Nantglyn with bike carriage might be limited due to its rural location. It's generally more convenient to drive to nearby towns like Denbigh or Ruthin, which are better served by public transport and offer access to many popular cycling routes. Always check with local transport providers regarding bike policies.
The spring, summer, and early autumn months generally offer the most pleasant conditions for road cycling in Denbighshire, with milder weather and longer daylight hours. While winter cycling is possible, be prepared for colder temperatures, potential rain, and shorter days, especially in the more exposed moorland areas.


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