4.6
(4385)
43,807
hikers
386
hikes
Hikes around Dolgarrog explore the Conwy Valley landscape within Eryri (Snowdonia) National Park. The area is characterized by a network of reservoirs, including Llyn Cowlyd and Llyn Eigiau, set beneath the high peaks of the Carneddau mountain range. The terrain varies from woodland paths in the lower valley to rugged, open moorland and steep mountain ascents on routes to summits like Carnedd Llewelyn.
Last updated: April 25, 2026
4.7
(14)
105
hikers
9.51km
02:51
300m
300m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.8
(8)
43
hikers
15.3km
05:03
700m
700m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

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5.0
(7)
70
hikers
16.9km
06:00
940m
940m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.2
(5)
33
hikers
13.4km
04:04
390m
390m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
55
hikers
9.32km
02:54
360m
360m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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A very fine mountain that is the high point of the Carneddau range. These mountains are high, remote and so much quieter than the Glyderau or Snowdon. Fabulous walking country.
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Carnedd Llewelyn is high and relatively remote, so walks there are quite a serious undertaking.
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As the previous person said, it is very very wet on the outward path from the bothy. If you do decide to go anyways, make sure to have a walking stick or similar to stabilise you and determine the depth of the water before sticking your foot in it.
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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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The sobering part was reading how they thought it was safe after hearing the church bells. They weren't, it was the church getting swept away!!!!
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The worst part of any hike ever. I had to carry on going up, creating my own path, through trees, scrambling up mudfalls, rock climbing with no ropes. it's all collapsed.
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Yes, there's a wide variety of options. You can find over 380 hiking routes in the area, ranging from easy woodland walks to challenging ascents in the Carneddau mountains.
The trails are very well-regarded by the komoot community. With over 48,000 visitors, the routes have earned an average rating of 4.6 out of 5 stars. Hikers often praise the dramatic mountain scenery and the sense of history found around the old dam ruins and reservoirs.
Many of the best routes in the area are circular. For a moderate loop that explores the area's reservoirs, the Yellow Lake – Dulyn Reservoir loop is a great choice. It's just under 6 miles (9.3 km) and offers fantastic views without being overly strenuous.
Dolgarrog is generally a dog-friendly area, but be aware that you'll be hiking in Snowdonia National Park where sheep grazing is common. Dogs should be kept on a lead, especially on open moorland and near livestock. The woodland trails in places like Gwydir Forest Park are often excellent for walks with dogs.
Yes, for a gentler walk suitable for families, the paths around Coedty Reservoir offer lovely scenery without difficult climbs. The Coed Dolgarrog National Nature Reserve also has accessible trails through the woods on the lower slopes of Moel Eilio, perfect for younger children.
The area is known for its water features. A popular walk is to Pont Dolgarrog, which provides views of the impressive Afon Ddu waterfalls. For another option, the nearby Fairy Falls (Rhaeadr Y Tylwyth Teg) in Trefriw is a well-loved spot, though parking can be limited.
The area holds a significant piece of industrial history. In 1925, the Eigiau Dam breached after heavy rainfall, causing a cascade failure of the Coedty Reservoir dam below. This resulted in a devastating flood in the village of Dolgarrog. Many walking routes pass the poignant ruins of the old dam wall, serving as a memorial to the event.
For experienced hikers seeking a tough day in the mountains, the View of Ffynnon Llugwy – Carnedd Llewelyn loop is a demanding option. This 10.5-mile (16.9 km) route involves a significant ascent of over 940 meters to the summit of Carnedd Llewelyn, the highest peak in the Carneddau range.
Parking can be found within the village of Dolgarrog itself, which serves as a good starting point for many trails. For hikes heading towards Llyn Eigiau and Carnedd Llewelyn, there is a car park at the end of the public road in the Eigiau valley. Always arrive early, especially on weekends, as spaces are limited and fill up quickly.
While Dolgarrog itself is small, the nearby towns of Trefriw and Llanrwst in the Conwy Valley offer several pubs, cafes, and restaurants. They are just a short drive away and provide great options for a post-hike meal or drink.
Yes, Dolgarrog is accessible by public transport. The village has a train station on the Conwy Valley Line, which connects to Llandudno and Blaenau Ffestiniog. Bus services also run through the valley, providing access to trailheads. Be sure to check timetables in advance as services can be infrequent.
Beyond hiking, the region is a hub for adventure. Adventure Parc Snowdonia offers activities like indoor caving and climbing. The local rivers and gorges, such as the Afon Ddu, are popular for gorge walking and canyoning. For more ideas on local attractions, you can check with Visit Conwy.


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