Aberglaslyn, Llyn Dinas and Cwm Bychan Walk
Aberglaslyn, Llyn Dinas and Cwm Bychan Walk
5.0
(2)
17
runners
02:07
17.7km
570m
Running
Embark on a challenging jogging route through the heart of Snowdonia National Park with the Aberglaslyn, Llyn Dinas and Cwm Bychan Walk. This difficult 11.0 miles (17.7 km) journey takes you through the dramatic Aberglaslyn gorge, where the Glaslyn river carves its way alongside a narrow fisherman's path. You will…
Last updated: April 23, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
518 m
Highlight • Monument
Tip by
2.46 km
Highlight • Viewpoint
Tip by
6.59 km
Highlight • Lake
Tip by
17.7 km
End point
Parking
Way Types & Surfaces
Way Types
6.88 km
6.61 km
2.15 km
1.43 km
592 m
< 100 m
Surfaces
11.1 km
2.48 km
1.70 km
1.29 km
1.06 km
< 100 m
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Elevation
Highest point (290 m)
Lowest point (30 m)
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Weather
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Tuesday 5 May
11°C
2°C
12 %
Additional weather tips
Max wind speed: 4.0 km/h
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This route was planned by komoot.
While komoot categorizes this route as 'jogging', the trail is generally considered challenging and not ideal for continuous jogging due to its varied and often demanding terrain. It is better suited for experienced country walkers with a good level of fitness, involving steep sections, rough country, and potentially some scrambling.
The trail features diverse and often rugged terrain. You can expect steep sections, particularly along the Aberglaslyn gorge where the 'fisherman's path' is narrow and requires care. Other parts include rocky and boggy areas, especially during ascents. There are also sections of rough country, steep hills, and crossings of the Welsh Highland Railway tracks. Some areas along the river have boardwalk sections.
The walk offers spectacular scenery and historical features. Highlights include the dramatic Pont Aberglaslyn and gorge, the serene waters of Llyn Dinas, and the charming village of Beddgelert, home to Gelert's Grave. You'll also see remnants of the area's industrial past, such as old copper mine workings.
The most common starting point for this walk is the picturesque village of Beddgelert. Parking is available in and around Beddgelert, though it can get busy, especially during peak season. Arriving early is advisable.
Yes, the trail is generally dog-friendly. However, given the varied terrain which includes narrow paths, steep sections, and potentially livestock, it's essential to keep dogs under close control, preferably on a leash, throughout the walk. Be prepared for stiles and rocky sections that might require assisting your dog.
Spring through autumn generally offers the best conditions for this walk. During colder months, the path can become icy, and high river levels can render some sections impassable, particularly along the Aberglaslyn gorge. Always check local weather and trail conditions before you go.
No specific permits or entrance fees are required to access the Aberglaslyn, Llyn Dinas and Cwm Bychan Walk itself, as it is within Snowdonia National Park. However, standard parking fees may apply in designated car parks.
Yes, the route shares sections with several other paths. Notably, it covers portions of the Cambrian Way, the Snowdonia Slate Trail, and the Craflwyn, Hafod y Llan and Llyn Dinas walk. You may also encounter parts of the Watkin Path and the Lôn Gwyrfai.
Yes, Llyn Dinas is a beautiful glacial lake and a popular spot for wild swimming or dipping during warmer weather. Always exercise caution, be aware of water temperatures, and respect the natural environment.
Yes, the walk starts and ends near the village of Beddgelert, which offers several amenities. You'll find cafes, pubs, and accommodation options there, perfect for a refreshment or meal before or after your walk.
For experienced walkers, this challenging route typically takes around 2 hours and 7 minutes to complete. However, this duration can vary significantly based on fitness levels, weather conditions, and time spent enjoying the numerous viewpoints and historical sites along the way.