The best walks and hikes around Llyn Nantlle Uchaf
4.6
(2471)
26,997
hikers
181
hikes
Hiking around Llyn Nantlle Uchaf offers diverse landscapes within the tranquil Nantlle Valley in Snowdonia, Gwynedd. The area is defined by Llyn Nantlle Uchaf, a picturesque lake, and its backdrop of mountain ridges, including prominent peaks such as Craig Cwm Silyn and Garnedd-goch. The terrain ranges from accessible paths around the lake to challenging mountain traverses along the Nantlle Ridge, with views of historic slate quarries integrated into some routes.
Best hiking trails around Llyn Nantlle Uchaf
- The most popular…
Last updated: May 12, 2026
4.7
(6)
29
hikers
6.57km
01:46
80m
80m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.6
(8)
38
hikers
3.47km
00:55
30m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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4.7
(3)
16
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
8
hikers
24.5km
09:09
1,060m
1,060m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(6)
51
hikers
7.32km
02:57
400m
400m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
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Tips from the Community
Best summit shelter ever! Seating supplied, some with side tables.🙂👍
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Nantle Valley is well known for its mountains and ridge. A lot of historic settlements and slate mining. Stunning views of Snowdonia. Road surface is good watch out for sheep moving freely and a couple of cattle grids in this area
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At 2,408 feet (734 m), Craig Cwm Silyn is the highest point on the Nantlle Ridge. It rewards with glorious views back along the snaking ridgeline, backed by the mighty Snowdon massif. The ascent of its northeast ridge is an entertaining scramble, while Craig Yr Ogof – the mountain's north-facing cliffs – provide plenty of rock climbing interest.
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One of the most aesthetic sections of the Nantlle Ridge, here the terrain narrows to a grassy crest on the approach to Mynydd Tal-y-Mignedd. While relatively narrow, there's no scrambling involved and it's nothing more than a walk, even under winter conditions.
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Craig Cwm Silyn at 734 m is the highest point of the Nantlle Ridge. It's a rocky ridge of a summit with good views along the ridge or down into the valleys on each side. Normally run as part of the ridge traverse, it makes a great day out in either direction.
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On the usual northeast to southwest traverse, Garnedd-goch is the final summit of the Nantlle Ridge. Unlike the peaks towards the start of the traverse, Garnedd-goch's rocky summit is found at the end of a much broader section of the ridge. On a clear day, it's a lovely viewpoint for the Lleyn Peninsula and Cardigan Bay beyond.
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The highest peak on the Nantlle Ridge, Craig Cwm Silyn is an excellent viewpoint for northern Snowdonia. The ascent of its rocky, northeast facing spur is an entertaining clamber, while to the west things broaden out towards Garnedd-goch. The mountain's north face, well seen from the village of Nantlle, is steep, rocky and popular with climbers.
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Mynydd Tal-y-Mignedd's beguiling east ridge is one of the most entertaining section of the Nantlle Ridge traverse. A grassy arete that connects Trum y Ddysgl to Mynydd Tal-y-Mignedd, it narrows to a slim, green sliver before broadening out again and ascending. While airy, the traverse is a walk rather than a scramble but a head for heights is still required.
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Frequently Asked Questions
How many hiking trails are available around Llyn Nantlle Uchaf?
There are over 180 hiking trails around Llyn Nantlle Uchaf. These include 58 easy routes, 82 moderate routes, and 43 difficult routes, offering options for all experience levels.
Are there any easy, family-friendly walks around Llyn Nantlle Uchaf?
Yes, Llyn Nantlle Uchaf offers several easy paths suitable for families. Routes like the Dorothea Track loop from Y Fron are short and explore the historic quarry area. Many accessible paths around the lake are also suitable for pleasant strolls.
What kind of circular walks can I find in the area?
The region features numerous circular walks. For an easy option, consider the Llyn Nantlle Uchaf – View of Llyn Nantlle loop from Llanllyfni, which offers scenic lake views. For a more challenging circular route, the Garnedd-goch Summit – Trum y Ddysgl loop from Llanllyfni traverses significant mountain ridges.
Are dogs allowed on the hiking trails around Llyn Nantlle Uchaf?
Yes, many trails around Llyn Nantlle Uchaf are dog-friendly. However, as the area is part of Snowdonia National Park and often involves agricultural land, it's essential to keep dogs under close control, especially near livestock. Always follow the Countryside Code.
What are the best times of year to hike in Llyn Nantlle Uchaf?
Llyn Nantlle Uchaf is beautiful year-round. Spring and autumn offer pleasant temperatures and vibrant scenery. Summer is ideal for enjoying the lake and longer daylight hours, while winter can provide dramatic, quiet landscapes, though some higher routes may require appropriate gear and experience due to weather conditions.
Where can I park when visiting Llyn Nantlle Uchaf for a hike?
Parking is generally available in and around the villages surrounding Llyn Nantlle Uchaf, such as Llanllyfni and Y Fron, which serve as starting points for many routes. Specific parking facilities and potential fees should be checked locally upon arrival.
What interesting landmarks or attractions can I see along the trails?
Beyond the stunning lake and mountain views, you can explore the region's rich slate quarrying heritage. The Dorothea Track loop from Y Fron, for instance, takes you past the historic Dorothea Quarry with its deep pools. The Nantlle Ridge also features the obelisk commemorating Queen Victoria's Diamond Jubilee on Mynydd Tal-y-Mignedd.
Is wild swimming permitted in Llyn Nantlle Uchaf?
Llyn Nantlle Uchaf is known for its clear, fresh water, making it suitable for swimming. It's a popular spot for wild swimming, offering a refreshing experience amidst stunning mountain scenery. Always exercise caution and be aware of water safety guidelines.
What do other hikers enjoy most about hiking in Llyn Nantlle Uchaf?
The komoot community highly rates the hiking experience in Llyn Nantlle Uchaf, with an average score of 4.6 stars from over 2,400 reviews. Hikers frequently praise the picturesque lake views, the challenging yet rewarding mountain ridges, and the historical insights offered by the old slate quarries.
Can I reach Llyn Nantlle Uchaf using public transport?
Public transport options to the Nantlle Valley exist, though they may be limited. Services like the Snowdon Sherpa bus routes can connect to nearby areas. It's advisable to check current bus schedules and routes for the most up-to-date information on accessing the Llyn Nantlle Uchaf area.
Are there any cafes or pubs near the hiking routes for refreshments?
Yes, there are local establishments in the villages surrounding Llyn Nantlle Uchaf. Some local roasters offer coffee, and you can find cafes and pubs to enjoy refreshments after your hike. These are typically found in places like Llanllyfni and Nantlle village.
What is the Nantlle Ridge and how challenging is it to hike?
The Nantlle Ridge is a significant mountain range featuring peaks like Craig Cwm Silyn, Mynydd Tal-y-Mignedd, and Garnedd-goch. The full traverse is considered a hard hike, requiring good fitness, sure-footedness, and a head for heights, often taking over nine hours with significant elevation gain. It offers rewarding views and an airy, though mostly walking, experience.
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