The best traffic-free bike rides around Cefni Reservoir
4.5
(83)
772
riders
27
rides
No traffic touring cycling routes around Cefni Reservoir are set within a serene environment, featuring the second-largest body of water on Anglesey. The area is characterized by extensive woodlands, including the peaceful Cefni Forest, and is fed by the Afon Frogwy and Afon Erddreiniog rivers. The terrain generally presents gentle elevation changes, making it accessible for a wide range of touring cyclists. On clear days, distant views of the Snowdonia mountains add to the picturesque backdrop.
Best no traffic touring…
Last updated: July 12, 2026
4.8
(11)
127
riders
43.6km
02:53
150m
150m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
14
riders
6.19km
00:33
30m
30m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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5.0
(1)
9
riders
8.44km
00:42
60m
50m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
6
riders
22.2km
01:25
210m
210m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.7
(3)
9
riders
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Cefni Reservoir
Tips from the Community
We visited for the Parkrun, which was cancelled whilst a walkway is fixed (some more weeks, I would expect). You can still access the lake along the disused railway line for part of the way - but not a good surface for running. Then there is a path around the lake with views across the lake and stretches through the woods, lovely, if rather muddy in places following wet weather. In total about 9 km around. Hope to do this again in the Spring with the promise of wild daffodils and perhaps a red squirrel.
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Quiet paths easy cycling crosses deserted railway line still present, which there trying to reopen
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Cefni Forest on Anglesey surrounds Llyn Cefni reservoir near Llangefni. It offers peaceful woodland trails for walking and cycling, linking to the Lon Las Cefni route. The forest is a sanctuary for red squirrels and diverse birdlife, making it a perfect spot for quiet nature exploration and wildlife watching.
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Llyn Cefni Dam During World War II, a water scheme was devised for the town of Llangefni in central Anglesey. It involved water from a local source being pumped to two settling tanks in the Dingle part of the town. From here the water was pumped across the river to a reservoir and water tower, on the site of the present Pennant Estate. These arrangements became redundant with the building of the Cefni Reservoir, which was completed in 1951, but the settling tanks and pumping station survive in Llangefni to this day. The new scheme was designed to supply most of the water needs for the people of Anglesey for the foreseeable future
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Pont Marquis Bridge Spanning the Afon Cefni, carrying the Trefdraeth to Llangaffo road, c. 3km ENE of Malltraeth. The bridge, which is Grade II listed, was built in the early C19, was named for the Earl of Uxbridge, first Marquis of Anglesey. It gives wonderful scenery over the marsh land and plenty of wildlife.
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Llangefni (meaning "church on the River Cefni", Welsh pronunciation: [ɬaŋˈɡɛvni]) population 5,116, making it the second-largest town in the county and the largest on the island. The community includes the village of Rhosmeirch. Wonderful welsh town with all the shop can get busy in summer holidays.
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The largest town on Anglesey (Holyhead is twice the size but is technically on Holy Island). Now bypassed by the island’s main roads which actually makes it a decent hub if you’re cycling across the south of the island.
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The path is fairly easy to miss if you’re coming along the A5: look for the section of railing by the roadside which marks the entrance. The path itself has some awkward narrow turns where it passes under the A55 but after that it’s wide, smooth and usually clear.
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Frequently Asked Questions
How many no-traffic touring cycling routes are available around Cefni Reservoir?
There are 27 dedicated no-traffic touring cycling routes around Cefni Reservoir. These routes range in difficulty, with 9 easy, 17 moderate, and 1 difficult option, ensuring choices for various skill levels.
What is the best time of year to go touring cycling at Cefni Reservoir?
The Cefni Reservoir area offers pleasant touring cycling conditions throughout much of the year due to its generally gentle terrain. Spring and autumn provide comfortable temperatures and beautiful scenery, with fewer crowds. Summer is also popular, but it's advisable to start earlier in the day to avoid the warmest hours. Always check local weather forecasts before heading out.
Are there any family-friendly no-traffic cycling routes around Cefni Reservoir?
Yes, Cefni Reservoir is well-suited for family cycling, particularly with its no-traffic routes. The Cefni Forest – Afon Cefni River loop from Anglesey is an easy 6.2 km route that is ideal for families. The area's generally flat terrain and dedicated paths make it safe and enjoyable for all ages.
Can I bring my dog on the no-traffic cycling routes?
Many of the trails around Cefni Reservoir are suitable for dogs, especially those on leads. The Cefni Forest, which many routes pass through, is a designated sanctuary for red squirrels and has diverse birdlife, so keeping dogs under control is essential to protect wildlife. Always check specific route guidelines for any restrictions.
Are there circular no-traffic touring cycling routes available?
Yes, several circular no-traffic touring cycling routes are available. For an easy option, consider the Llyn Cefni Reservoir and Dam – Cefni Forest loop from Anglesey, which is 8.4 km. These routes allow you to start and finish at the same point, making logistics simpler.
What natural features or landmarks can I see along the routes?
The routes offer diverse natural beauty. You can cycle through the peaceful Cefni Forest, known for its red squirrels and birdlife, and enjoy views of the reservoir itself. The northeastern end of the reservoir features a nature reserve with bird hides. The nearby Dingle Nature Reserve (Nant y Pandy) also offers a beautiful wooded valley with boardwalks. The Llyn Cefni Reservoir and Dam – Cefni Forest loop from Anglesey specifically takes you past the Llyn Cefni Dam.
Is there parking available for cyclists at Cefni Reservoir?
Yes, parking facilities are available around Cefni Reservoir, making it convenient to access the cycling routes. Specific parking areas are usually well-marked near popular trailheads or access points to the reservoir and Cefni Forest.
What is the general difficulty and terrain like for these no-traffic routes?
The no-traffic routes around Cefni Reservoir generally feature gentle elevation changes, making them accessible for a wide range of cyclists. The terrain is varied, including paved surfaces, compacted gravel paths, and forest trails. While most routes are easy to moderate, there is one more challenging option for experienced riders.
Are there any cafes or pubs near the no-traffic cycling routes?
While Cefni Reservoir itself is a serene natural area, its central location on Anglesey means there are villages and towns within a reasonable cycling distance where you can find cafes, pubs, and other amenities. It's advisable to carry snacks and water, especially for longer rides, and plan your stops in advance.
What do other touring cyclists say about cycling in Cefni Reservoir?
The Cefni Reservoir area is highly rated by the komoot community, with an average score of 4.5 out of 5 stars from 78 ratings. Reviewers often praise the quiet, traffic-free nature of the routes, the beautiful forest scenery, and the accessibility for all skill levels, making it a popular choice for a peaceful cycling experience.
Can I reach Cefni Reservoir by public transport to access the cycling routes?
Public transport options to Cefni Reservoir are limited, as it is a more rural location. While some local bus services operate on Anglesey, direct access to the reservoir's trailheads might require a short ride or walk from the nearest stop. Planning your journey in advance and checking local bus timetables is recommended.
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