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North Wales
Gwynedd

Llyn Nantlle Uchaf

The best dog-friendly hikes and walks around Llyn Nantlle Uchaf

4.6

(2483)

27,013

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34

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Dog friendly hiking trails around Llyn Nantlle Uchaf are set within the Eryri (Snowdonia) National Park, characterized by its lake, rolling hills, and the backdrop of majestic mountains including Snowdon and Mynydd Mawr. The region features diverse terrain, from accessible paths around the lake to challenging mountain ridges. Hikers can explore areas with a rich industrial heritage, such as the disused Dorothea Quarry, alongside natural landscapes. The Nantlle Valley offers a variety of routes suitable for different fitness levels.

Best…

Last updated: May 17, 2026

5.0

(1)

3

hikers

#1.

Trum y Ddysgl – Y Garn Summit (Nantlle Ridge) loop from Trum y Ddysgl SSSI

27.8km

11:56

1,690m

1,690m

Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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Hard

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

Moderate
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Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.

Hard

Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard

Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard
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Tips from the Community

Dominiek Van Dooren
May 13, 2026, View of Snowdon Across Llyn Llewelyn

Slightly above Llyn Llewelyn you have a nice view of Snowdon and the surrounding peaks. Enjoy this beautiful view.

Translated by Google

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This lake is located near the village of Rhyd-ddu (not at the foot of Cadair Idris mountain). The lake has a surface area of 50 hectares and is situated 182 meters above sea level. According to John Leland in the 16th century, the original name was "Llyn Cadair yr Aur Frychin". The lake became famous through the sonnet Tyr Ysgol (The school building) by the poet TH Parry-Williams. (Wikipedia)

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Great little station and you can get a good view of the little trains here. It's also a jump off point to climb Moel Hebog.

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Grace Mulligan
November 6, 2024, Llyn y Gadair

Llyn y Gadair, which translates to "Lake of the Chair," is a breathtaking glacial lake located at the foothills of Cadair Idris, nestled beneath the rugged peak of Cyfrwy. This serene body of water is known for its clear, cold waters and its picturesque setting amid Snowdonia's dramatic landscape​

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Outstanding scenery, comfortable carriages and historic steam engines await you here in the heart of Snowdonia. Glorious coastlines, ancient oak woodlands, mountains, rivers and castles, all beckon as you embark on your journey on award winning railways. With some of the most comfortable carriages on any preserved railway – standard or narrow gauge – you can step back in time to a more civilised age.

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Hafod Ruffydd is a location on the Welsh Highland Railway. This is the 'summer residence of Gruffydd,' who kept cattle in the 1600s. Several local farms kept cattle - no doubt the Welsh kind which come red in the dominant form, or black in the recessive; either is exceedingly good eating.

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Beddgelert station is a railway station on the narrow gauge railway of the Welsh Highland Railway in North Wales. The rebuilt station was officially opened by Lord Elis-Thomas on April 7, 2009. (Wikipedia)

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Y Garn is the first summit on the traditional northeast to southwest traverse of the classic Nantlle Ridge. The summit is most notable for the excellent vantage it provides towards the striking north ridge of Mynydd Drws-y-Coed – an enticing line. From here, it's a grade one scramble to its neighbouring summit.

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Frequently Asked Questions

How many dog-friendly hiking trails are available around Llyn Nantlle Uchaf?

There are over 30 dog-friendly hiking trails around Llyn Nantlle Uchaf, offering a wide range of experiences from easy lakeside strolls to challenging mountain ascents. You'll find options suitable for various fitness levels and preferences.

What kind of terrain can I expect on dog-friendly hikes in the Llyn Nantlle Uchaf area?

The terrain varies significantly. You can find relatively flat, accessible paths around the lake itself, ideal for a relaxed walk. For more adventurous dogs and owners, trails ascend into the surrounding hills and mountains, featuring rocky sections, grassy ridges, and potentially steep climbs, especially on routes like the Nantlle Ridge.

Are there easy dog-friendly walks suitable for all fitness levels around Llyn Nantlle Uchaf?

Yes, there are several easy dog-friendly walks. The paths directly around Llyn Nantlle Uchaf offer accessible, gentle loops perfect for a leisurely stroll with your dog. These routes provide beautiful views without significant elevation gain, making them suitable for families and those seeking a less strenuous outing.

Can I find challenging dog-friendly hikes in the Llyn Nantlle Uchaf area?

Absolutely. For experienced hikers and their dogs, the Nantlle Ridge offers challenging routes with substantial elevation gain and dramatic scenery. Consider the Trum y Ddysgl – Y Garn Summit loop, which is a difficult, long-distance trek providing incredible views across Snowdonia. Always ensure your dog is fit enough for such demanding trails.

Are there any circular dog-friendly routes around Llyn Nantlle Uchaf?

Yes, many of the dog-friendly routes in the area are circular, allowing you to start and finish at the same point. For a moderate circular option, consider the Garnedd-goch loop, which takes you through varied landscapes within Eryri (Snowdonia) National Park.

What are the best viewpoints on dog-friendly trails in the Llyn Nantlle Uchaf region?

Many trails offer spectacular views. From higher points on the Nantlle Ridge, such as Craig Cwm Silyn or Trum y Ddysgl, you can enjoy panoramic vistas of Snowdon, Mynydd Mawr, the Lleyn Peninsula, and Cardigan Bay on clear days. Even easier lakeside paths provide stunning perspectives of the surrounding mountains reflected in Llyn Nantlle Uchaf.

What are the rules for dogs on trails in Eryri (Snowdonia) National Park?

When hiking with your dog in Eryri (Snowdonia) National Park, it's crucial to keep them under close control, preferably on a lead, especially near livestock (sheep, cattle) and during ground-nesting bird season (March to July). Always pick up after your dog and dispose of waste responsibly. Respect local signage regarding dog access.

Where can I park for dog-friendly hikes around Llyn Nantlle Uchaf?

Parking is available at various points around the lake and at trailheads leading into the surrounding hills. Specific car parks can be found near villages like Nantlle and Talysarn, as well as smaller lay-bys. Always check for any parking restrictions or fees before you go.

Are there dog-friendly cafes or pubs nearby where I can relax after a hike?

Yes, the Nantlle Valley has a few dog-friendly establishments. While options directly on the lake shore might be limited, you can often find cafes and pubs in nearby villages that welcome well-behaved dogs, especially in their outdoor seating areas. It's always a good idea to call ahead to confirm their current dog policy.

What is the best time of year to hike with my dog around Llyn Nantlle Uchaf?

Spring and autumn generally offer the most pleasant conditions for hiking with your dog, with milder temperatures and beautiful scenery. Summer can be lovely but also busier and warmer, so plan early morning or late afternoon hikes. Winter can be challenging due to colder weather, shorter daylight hours, and potentially icy or snowy conditions at higher elevations.

What do other hikers enjoy most about the dog-friendly trails around Llyn Nantlle Uchaf?

The area is highly rated by the komoot community, with an average score of 4.6 stars from over 2,400 ratings. Reviewers often praise the stunning mountain backdrops, the tranquility of the lake, and the diverse range of trails that cater to both casual walkers and serious hikers, all while being able to bring their canine companions along.

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