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North Wales
Anglesey

Cefni Reservoir

The best family-friendly hikes and walks around Cefni Reservoir

4.5

(160)

1,853

hikers

31

hikes

Family friendly hiking trails around Cefni Reservoir are characterized by a diverse landscape of water features and woodlands. The region is centered around the Llyn Cefni Reservoir, formed by a dam on the Afon Cefni river, providing extensive waterside views. Surrounding the reservoir, Cefni Forest offers shaded paths through tranquil woodland. The terrain generally features gentle elevation changes, making it accessible for various ability levels.

Best family friendly hiking trails around Cefni Reservoir

  • The most popular family friendly hiking route…

Last updated: July 12, 2026

4.6

(17)

195

hikers

#1.

Llyn Cefni Reservoir and Dam – Afon Cefni River loop from Anglesey

6.04km

01:34

30m

30m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Tips from the Community

cannonmark
April 1, 2026, Dam at Cefni Reservoir

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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Targi
September 1, 2025, Cefni Forest

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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Some areas of the track are a bit tight

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Frequently Asked Questions

How many family-friendly hiking trails are available around Cefni Reservoir?

Cefni Reservoir offers a fantastic network of over 30 family-friendly hiking routes. These range from easy strolls perfect for younger children to moderate paths suitable for active families, ensuring there's something for everyone to enjoy.

What kind of terrain can we expect on family walks around Cefni Reservoir?

The terrain around Cefni Reservoir is generally gentle, with minimal elevation changes, making it very accessible for families. You'll find a mix of well-maintained paths, woodland trails through Cefni Forest, and waterside routes along the reservoir and Afon Cefni river. Surfaces can vary from compacted earth to gravel paths.

Are there any circular routes suitable for families?

Yes, Cefni Reservoir is ideal for circular family walks. Many routes are designed as loops, allowing you to explore different aspects of the area without retracing your steps. For example, the Llyn Cefni Reservoir and Dam – Afon Cefni River loop from Anglesey offers a lovely circular experience, combining reservoir views with river sections.

Can we bring our dog on these trails?

Yes, many trails around Cefni Reservoir are dog-friendly. It's a popular spot for walkers with dogs. However, please keep your dog on a lead, especially near livestock, wildlife, and in designated nature reserve areas, to protect the local environment and other visitors.

What wildlife might we see during our family hike?

Cefni Reservoir is a haven for wildlife. Keep an eye out for various water birds like grebes, coots, and swans on the reservoir. Within Cefni Forest, you might be lucky enough to spot red squirrels, and birds of prey such as red kites are often seen overhead. It's a great opportunity for children to connect with nature.

Are there any specific points of interest for children along the routes?

Absolutely! Children often enjoy the impressive Llyn Cefni Dam, which can be incorporated into several routes. Exploring the peaceful Cefni Forest offers a sense of adventure, and spotting the disused railway line (Lein Amlwch) that crosses the lake adds an interesting historical element. The varied birdlife on the water also provides engaging viewing opportunities.

Is Cefni Reservoir accessible by public transport?

While public transport options directly to the reservoir might be limited, the area is well-connected to the Lôn Las Cefni cycleway. This path meanders from The Dingle local nature reserve in Llangefni, which may have better public transport links. Planning your journey in advance is recommended.

Where can we park when visiting Cefni Reservoir?

There are several parking areas available around Cefni Reservoir, particularly near popular access points and trailheads. These are generally well-signposted. It's advisable to arrive early during peak seasons to secure a spot, especially if you're planning a longer family outing.

Are there places to eat or drink nearby after our hike?

While there aren't cafes directly on the reservoir trails, the nearby town of Llangefni offers various options for refreshments, including cafes and pubs. Some establishments may even have outdoor seating or play areas suitable for families.

What's the best time of year to hike with family around Cefni Reservoir?

Cefni Reservoir is beautiful year-round, but spring and summer offer the most pleasant conditions for family hikes, with warmer weather and lush greenery. Autumn brings stunning foliage, while winter can offer crisp, quiet walks, though some paths might be muddier. Always check the weather forecast before heading out.

Are there any pram-friendly or toddler-suitable routes?

Yes, the generally gentle terrain and well-maintained paths make parts of Cefni Reservoir suitable for prams and toddlers. Routes like the Cefni Forest loop are relatively short and have minimal elevation, making them ideal for little legs or those with pushchairs. Look for routes marked as 'easy' for the most accessible options.

What do other hikers enjoy most about hiking in Cefni Reservoir?

The area is highly rated by the komoot community, with an average score of 4.7 stars. Reviewers often praise the peaceful atmosphere, the beautiful waterside views, and the well-marked, accessible paths that make it enjoyable for all ages. The chance to spot wildlife, especially red squirrels in Cefni Forest, is also a frequently mentioned highlight.

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