4.2
(10)
112
hikers
8
hikes
Family friendly hiking trails around Alwen Reservoir are characterized by diverse landscapes, including tranquil lakeside paths, dense woodlands, and open moorland. The region features the Alwen Reservoir itself, the largest man-made lake in Wales, surrounded by conifer forests of Hiraethog. Hikers can explore varied habitats and enjoy views across the reservoir and distant hills from elevated positions. The impressive Alwen Dam, with its ornate design, serves as a central point for many routes.
Last updated: May 17, 2026
5.0
(1)
17
hikers
8.22km
02:12
100m
100m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.0
(1)
5
hikers
13.1km
03:36
220m
220m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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9
hikers
4.97km
01:22
80m
80m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
2
hikers
6.53km
01:46
90m
90m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.0
(4)
18
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Popular around Alwen Reservoir
You can head back to llyn brenig before you get to the section as a short cut, this but is not to be missed. Flows really nice, cutting through some old forest before a fun section along the lake.
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Though it was not a tough or technical ride, it did take me into territory I had never visited before and was a lovely antidote to the 'fleshpots' of Gwydir Forest or Coed-y-Brenin. Some lovely gentle singletrack, beautiful views and I didn't see another rider for the whole trip - although tbh I did set off at 08.30 on a Wednesday!!
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Alwen Reservoir is the largest human-made lake in Wales and it makes for a lovely walk. There's a car park at its eastern end and the 6-mile (10 km) loop of the reservoir is wonderfully scenic and suitable for the whole family. The mixture of lake views, woodland and open moorland make it a real treat.
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This bridge across the 900-acre (364 ha) Alwen Reservoir enables a beautiful and tranquil loop of the Wales' largest artificial lake. The views across the water and to the surrounding woodland and hills are lovely.
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An easy route for all abilities
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An easy route for all the family to enjoy, although you might want to go int he warmer months of the year. It can be very wet and windy up here in the Winter.
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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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There are 8 family-friendly hiking trails around Alwen Reservoir featured in this guide, offering a mix of easy and moderate options suitable for various ages and abilities. These routes allow families to explore the tranquil lakeside, dense woodlands, and open moorland.
Yes, several easy routes are perfect for families with young children. For example, the Alwen Dam – View of Llyn Brenig loop from Alwen Dam is an easy 4.9 km (3 miles) hike that takes around 1 hour 20 minutes, offering gentle terrain and scenic views. Another great option is the Alwen Dam loop from Alwen Dam, which is 6.5 km (4 miles) and also rated easy.
The trails around Alwen Reservoir offer a diverse range of scenery, including tranquil lakeside views, dense woodlands with Norway spruce, pines, and larch, and expansive open moorland. From higher points, you can often enjoy breathtaking panoramic views across the reservoir and even to the distant mountains of Eryri National Park (Snowdonia). The reservoir itself is the largest man-made lake in Wales, adding to the unique landscape.
Absolutely! A significant attraction is the impressive Alwen Dam, known for its architecturally spectacular and ornate design, including an Italian-style valve tower. Along the waymarked trails, you'll also find six illustrated panels providing insights into local wildlife, culture, and folk tales, such as the story of the 'Freckled Fairy Cow'.
Yes, the trails around Alwen Reservoir are generally dog-friendly, making it a great destination for families with canine companions. However, please ensure dogs are kept under control, especially in areas with livestock or wildlife, and always clean up after your pet.
Many of the routes around Alwen Reservoir are circular, which is ideal for families. A popular choice is the Alwen Dam – Alwen Reservoir loop from Alwen Dam, an 8.1 km (5 miles) moderate circular hike that takes you along the water's edge and through forests. Another option is the longer Alwen Reservoir Bridge – Alwen Dam loop from Alwen Dam, a 14.1 km (8.7 miles) moderate route.
Alwen Reservoir is beautiful year-round, but spring and autumn offer particularly pleasant conditions for family hiking with milder temperatures and stunning natural colours. Summer is also popular, though trails can be busier. Winter walks can be magical, but require appropriate gear for potentially colder and wetter weather.
There are parking facilities available, particularly near the Alwen Dam, which serves as a central starting point for many trails. These car parks provide convenient access to the well-maintained network of paths.
The area is highly rated by the komoot community, with an average score of 4.58 stars. Reviewers often praise the tranquil atmosphere, the diverse scenery ranging from lakeside to moorland, and the well-maintained, waymarked trails that make navigation easy for families. The opportunity to spot local wildlife like red squirrels and various bird species is also frequently highlighted.
While facilities directly at Alwen Reservoir might be limited, a link route connects Alwen Reservoir to the nearby Llyn Brenig, which boasts a visitor center with amenities like a café and toilets. This provides a convenient stop for refreshments and facilities during or after your hike.
Yes, for families seeking a longer adventure, the Alwen Dam – View of Alwen Reservoir loop from Alwen Dam is a moderate 13 km (8 miles) hike with more elevation gain, offering wider views across the landscape. This route provides a good challenge while still being manageable for active families.


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