28
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4
rides
Road cycling routes around Llyn Alwen traverse the picturesque Mynydd Hiraethog, also known as the Denbigh Moors, in North Wales. The region features a blend of serene reservoir waters, expansive moorland, and dense coniferous forests, offering diverse scenery for cyclists. Routes often incorporate well-paved roads, with some sections including forestry tracks and gravel. The terrain presents varying elevations, catering to different fitness levels.
Last updated: July 8, 2026
7
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
3
riders
33.2km
02:03
600m
600m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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4
riders
36.4km
01:55
520m
520m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
2
riders
18.4km
00:56
330m
330m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
2
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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Ffynnon Eidda from Ysbyty Ifan is a climb in the region Conwy. It is 10.7km long and bridges 288 vertical meters with an average gradient of 2.7%, resulting in a difficulty score of 142. The top of the ascent is located at 486 meters above sea level.
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Llyn Brenig is located at the heart of the Mynydd Hiraethog and is a good base for outdoor activities, including walking, cycling, fishing and sailing. It is a great spot for a break off the bike and the area is surrounded by a network of footpaths and a number of way marked trails suitable for biking and walking, including the Brenig Trail. The Visitor Centre provides toilet facilities and a cafe.
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very nice campsite and pub. Also very willing to let you park there for a bike ride. Campsite is £10 per tent and 2 people. very friendly landlord.
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Views from the B4501 road across Llyn Brenig and down across southern Bala and southern Snowdonia towards Cadair Idris.
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Llyn Brenig is a reservoir constructed between 1973 and 1976 to manage the flow of the River Dee and provide water to northeast Wales and the Liverpool area. Keep an eye out for Ospreys which have successfully nested in the area. the visitor centre has a café.
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Great little self service shop open 24 hours a day. Plus a pub.
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The road cycling routes around Llyn Alwen primarily feature well-paved roads, especially on longer loops. However, the broader region, including areas closer to the reservoir, can also incorporate forestry tracks and some gravel sections, offering a varied experience. The landscape transitions from serene reservoir waters to expansive moorland and dense coniferous forests.
Yes, the Llyn Alwen area offers routes with significant elevation gain for those seeking a challenge. For instance, the Y Giler Arms Campsite & Pub loop from Pentrefoelas features nearly 600 meters of ascent over its 33.2 km distance, providing a robust workout through the Denbigh Moors.
Cyclists can enjoy stunning views of Llyn Alwen and the larger Llyn Brenig, especially from elevated positions on the moorlands. The routes traverse diverse scenery, including coniferous forests and the open moorland of Mynydd Hiraethog. The Alwen dam itself is a notable structure. You might also spot rare wildlife such as black grouse and red squirrels.
While the immediate Alwen Cycle Trail around the reservoir has some rougher ground, the broader network of roads in the Llyn Alwen region offers options suitable for varying fitness levels. For families with good fitness, some moderate road loops can be enjoyable, allowing you to experience the scenic beauty on paved surfaces. Always check route details for specific terrain and elevation.
Parking facilities are available at key access points around the reservoirs. The Llyn Brenig Visitor Centre, which is connected to Llyn Alwen by link routes, serves as a convenient base and offers amenities including parking.
The Llyn Alwen region is enjoyable for road cycling across multiple seasons. Spring and autumn offer pleasant temperatures and beautiful scenery with changing foliage. Summer provides longer daylight hours, while winter can be challenging due to weather conditions but offers a unique, tranquil experience for well-prepared cyclists. Always check local weather forecasts before heading out.
Yes, there are options for refreshments. The Llyn Brenig Visitor Centre, easily accessible from routes connecting Llyn Alwen, has a cafe. Additionally, routes like the Cafe by the Lake loop from Glasfryn are named for their proximity to such establishments, and the Y Giler Arms Campsite & Pub loop from Pentrefoelas suggests a pub stop.
The region is rich in history. Illustrated panels along some trails provide information on local culture and folk tales. In the wider Llyn Brenig area, you can find evidence of Bronze Age settlements, including burial mounds and barrows, offering a glimpse into the region's ancient past.
There are several road cycling routes available in the Llyn Alwen area, with this guide featuring 6 distinct routes. These routes cater to various preferences, from moderate rides to more challenging options with significant elevation gain.
Yes, bike hire facilities are available at the Llyn Brenig Visitor Centre, which is connected to Llyn Alwen by various routes. This makes it convenient for visitors who may not have their own equipment to explore the area.
Generally, no specific permits are required for road cycling on public roads around Llyn Alwen. However, if you plan to venture onto private land or specific managed trails, it's always advisable to check with local authorities or land managers. For general information about the area, you can visit Visit Mid Wales.
The road cycling routes around Llyn Alwen offer a range of difficulty levels. Most routes are classified as moderate, suitable for cyclists with good fitness. There are also more challenging routes with significant elevation gains for experienced riders. For example, the Llyn Brenig Visitor Centre – Llyn Brenig loop from Gorsedd Bran is a moderate 36.4 km ride.


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