The best walks and hikes around Cefni Reservoir
4.7
(153)
1,781
hikers
40
hikes
Hiking around Cefni Reservoir offers a network of trails surrounding the central body of water on Anglesey. The area is characterized by the reservoir itself, the Afon Cefni river, and surrounding woodlands, providing a varied landscape for outdoor activities. The terrain generally features gentle elevation changes, making it accessible for many hikers. The presence of the Llyn Cefni Dam also adds a notable man-made feature to the natural environment.
Best hiking trails around Cefni Reservoir
- The most popular hiking route…
Last updated: May 12, 2026
4.6
(17)
195
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.6
(14)
180
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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4.8
(14)
156
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
31
hikers
3.16km
00:49
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
21
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Tips from the Community
Great loop around the reservoir, all kinds of gravel.
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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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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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Frequently Asked Questions
How many hiking trails are available around Cefni Reservoir?
There are over 40 hiking routes around Cefni Reservoir, offering a variety of experiences for different skill levels. You'll find paths that follow the reservoir's edge, wind through Cefni Forest, and trace the Afon Cefni river.
Are there easy hiking options suitable for beginners or families?
Yes, Cefni Reservoir is an excellent location for easy hikes. More than half of the available routes are graded as easy, making them ideal for beginners, families, or those looking for a relaxed stroll. An example is the Cefni Forest – Llyn Cefni Reservoir and Dam loop from Anglesey, which is just over 3 km long.
Can I bring my dog on the trails around Cefni Reservoir?
Cefni Reservoir is generally dog-friendly, offering many paths suitable for walks with your canine companion. However, please keep dogs under control, especially near livestock or wildlife, and always clean up after them to preserve the natural environment for everyone.
Are there circular walks available at Cefni Reservoir?
Yes, many of the routes around Cefni Reservoir are circular, allowing you to start and end at the same point without retracing your steps. For instance, the Llyn Cefni Reservoir and Dam – Llyn Cefni Reservoir and Dam loop from Isle of Anglesey offers a pleasant circular experience with views of the water and dam.
What kind of scenery and natural features can I expect to see?
Hikers at Cefni Reservoir can expect diverse scenery, including expansive views of the reservoir itself, tranquil sections along the Afon Cefni river, and peaceful passages through Cefni Forest. The Llyn Cefni Dam is also a notable man-made feature integrated into the landscape.
What is the best time of year to hike around Cefni Reservoir?
Cefni Reservoir offers enjoyable hiking experiences year-round. Spring brings fresh greenery and blooming flora, while autumn showcases vibrant foliage. Summer is popular for longer days and warmer weather, and even winter walks can be beautiful, offering crisp air and serene, less crowded paths.
Are there any facilities or cafes near the hiking trails?
While the immediate reservoir area is primarily natural, the nearby town of Llangefni offers various amenities, including cafes, shops, and public facilities, which are easily accessible before or after your hike.
Is there parking available for hikers at Cefni Reservoir?
Yes, there are designated parking areas around Cefni Reservoir, providing convenient access to the trailheads. Specific parking locations can often be found detailed on individual route descriptions on komoot.
What do other hikers say about Cefni Reservoir?
The area is highly rated by the komoot community, with an average score of 4.7 stars from nearly 150 reviews. Reviewers often praise the peaceful atmosphere, varied scenery, and well-maintained paths suitable for all abilities.
Are there opportunities to see wildlife during a hike?
Cefni Reservoir is a habitat for various wildlife, particularly birds. Keep an eye out for waterfowl on the reservoir and listen for woodland birds in Cefni Forest. The area's natural setting provides good opportunities for nature observation.
How long does it typically take to walk around parts of Cefni Reservoir?
Walking times vary depending on the chosen route and your pace. For example, the Llyn Cefni Reservoir and Dam – Afon Cefni River loop from Anglesey, which is about 6 km, typically takes around 1 hour 34 minutes to complete.
Are there any moderate difficulty trails for more experienced hikers?
Yes, Cefni Reservoir also offers moderate trails for those seeking a slightly more challenging experience. For instance, the Llyn Cefni Dam – Llyn Cefni Reservoir and Dam loop from Anglesey is a 7.9 km route graded as moderate, often completed in about 2 hours.
Most popular routes around Cefni Reservoir
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