4.6
(2618)
27,080
hikers
177
hikes
Family friendly hiking trails around Llyn Dulyn are situated within the remote Carneddau mountain range in Snowdonia, North Wales. The region is characterized by its rugged landscapes, deep lakes like Llyn Dulyn itself, and vast expanses of open moorland. Steep cliffs rise from the lake's edges, leading to surrounding hills and peaks. The terrain offers a mix of clear paths and fainter tracks, with some sections being boggy or steep.
Last updated: June 1, 2026
22
hikers
5.50km
01:25
30m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.5
(2)
22
hikers
10.6km
02:53
160m
160m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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5.0
(2)
35
hikers
8.58km
02:40
290m
290m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.8
(9)
66
hikers
20.3km
06:52
1,000m
1,000m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.7
(3)
28
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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A great place to take in a view of east Eryri and the Carneddau range with easy access. See Tal y Fan in the foreground and beyond it Drum and Carnedd Y Ddelw and on even clearer days Carnedd Gwenllian
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All the years walking in north wales and never been on this route - stunning views
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The reservoir was originally built in 1924 to supply water for the hydro-electric power station in Dolgarrog, which in turn powered an aluminium smelting works. This power station is still operational today. Coedty Reservoir is historically significant due to its involvement in the devastating Dolgarrog Dam Disaster of 1925. The failure of the Llyn Eigiau dam, located upstream, led to a surge of water that also breached the Coedty dam. This resulted in a catastrophic flood that swept through the village of Dolgarrog, causing the loss of 16 lives. Coedty dam is a "balance tip" dam, meaning water flows from it automatically when it reaches high levels. This excess water flows into a spectacular gorge below, which is used by outdoor pursuit groups. However, gorge walking here can be dangerous due to the sudden releases of water.
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Approaching from the north it is a slog on the bike but nothing technical. With the right gearing and fitness it's all rideable if you're happy to take your time and plod.
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Takes you to one side or the other. Seriously!? Oh ok.... Beautiful places either side to sit and enjoy your lunch.... and also to watch people slip off the rocks and get wet. i.e. ME!!!
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The Llyn Dulyn area offers a wide variety of hiking options, with over 170 routes in total. For families, there are more than 40 easy trails that are generally suitable for all ages, providing a great way to explore the stunning landscapes of the Carneddau Mountains.
Family-friendly trails around Llyn Dulyn feature a mix of clear paths and some fainter tracks. While many routes are accessible, be prepared for varied terrain that can include some boggy sections, especially after rain, and gentle ascents. The area is known for its rugged beauty, so sturdy footwear is always recommended.
Yes, there are several circular walks that are great for families. For instance, the Llyn Dulyn Circular Walk allows you to immerse yourselves in the remote wilds of Snowdonia, passing by Llyn Melynllyn (Yellow Lake) and offering impressive views of the Carneddau crags without necessarily summiting a mountain. Another option is the Aber Falls – Aber Falls Pathway loop from Bwlch y Ddeufaen, which offers a rewarding experience with a stunning waterfall.
The Llyn Dulyn area is rich in natural beauty and intriguing history. You can explore the dark, mystical waters of Llyn Dulyn itself, framed by dramatic cliffs. Keep an eye out for the simple but historic Dulyn Bothy, a mountain shelter near the lake. The cwm (valley) also holds a somber history as 'The Aviator's Graveyard' due to past aeroplane crashes. You'll also encounter remote reservoirs and vast expanses of open moorland, offering a true sense of wildness.
Absolutely! One of the highlights for many families is the chance to encounter the wild Carneddau Ponies. These beautiful animals roam freely in Cwm Dulyn and the surrounding Carneddau Mountains, adding a unique charm to your outdoor adventure. Birdwatching opportunities are also plentiful in this remote environment.
Yes, the region boasts impressive waterfalls. A notable option is the Aber Falls – Aber Falls Pathway loop from Bwlch y Ddeufaen, which leads to the spectacular Aber Falls. This trail provides a fantastic destination for families looking to enjoy the sight and sound of cascading water amidst beautiful scenery.
The warmer months, from late spring to early autumn (May to September), generally offer the most pleasant conditions for family hiking around Llyn Dulyn. During this period, the weather is typically milder, days are longer, and the trails are less likely to be boggy or icy, making for a more enjoyable and safer experience for children.
Many trails in the area provide stunning vistas. While specific easy routes are not detailed here, the general landscape of the Carneddau offers numerous opportunities for panoramic views. Even moderate trails like the View of Ffynnon Llugwy – View of Ogwen Valley loop from Capel Curig offer incredible scenery and can be adapted for families with older children or those used to hiking.
The Llyn Dulyn area is highly rated by the komoot community, with an average score of 4.6 stars. Reviewers often praise the sense of wildness and solitude found in the Carneddau Mountains, the dramatic scenery of the black lake itself, and the chance to encounter the iconic Carneddau Ponies. The varied terrain and the opportunity to explore a quieter part of Snowdonia are also frequently highlighted.
Access to the more remote Llyn Dulyn area by public transport can be limited. While some bus services operate in the wider Snowdonia region, reaching specific trailheads directly might require careful planning or a combination of transport methods. It's advisable to check local bus schedules for routes serving nearby villages like Dolgarrog, which can be a starting point for some trails, and plan accordingly.
Parking is generally available at various starting points for trails in the Llyn Dulyn and wider Carneddau area. However, given the remote nature of some trailheads, parking facilities might be informal or have limited spaces, especially during peak seasons. It's always a good idea to arrive early to secure a spot, particularly if you're starting from popular access points like those near Dolgarrog or the Ogwen Valley.


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