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Routes
Running Trails
United Kingdom
Wales
North Wales
Conwy

Llyn Ogwen

The best running trails around Llyn Ogwen

3.5

(6)

422

runners

12

runs

Jogging routes around Llyn Ogwen are set within the dramatic Ogwen Valley, a glacial valley in Eryri National Park, North Wales. The landscape is characterized by majestic mountains such as Tryfan, Pen yr Ole Wen, and the Glyderau, which encircle the ribbon lake. Terrain varies from relatively flat paths along the lakeshore to uneven, rocky sections and boggy areas, providing diverse running conditions. The area also features the Ogwen waterfall and serves as a gateway to more challenging mountain trails.

Best jogging routes around Llyn Ogwen

  • The most popular jogging route is Cwm Idwal Walk, a 2.6 miles (4.2 km) trail that takes 28 minutes to complete. This path offers dramatic glacial scenery and is considered a moderate route.
  • Another top favourite among local runners is Glyder Fawr & Glyder Fach loop from Ogwen Cottage, a difficult 6.3 miles (10.1 km) path. This route features significant elevation gains and expansive mountain vistas.
  • Local runners also love the Carnedd Dafydd & Carnedd Llewelyn loop from the Ogwen Valley, a 12.2 miles (19.7 km) trail leading through majestic mountains, often completed in about 2 hours 50 minutes.
  • Jogging around Llyn Ogwen is defined by majestic mountains, a ribbon lake, and varied terrain. The network offers options for different ability levels, from moderate paths to challenging mountain trails.
  • The routes in Llyn Ogwen are highly rated by the komoot community with an average score of 4.0 stars from over 7 reviews. More than 400 runners have used komoot to explore Llyn Ogwen's varied terrain.

Last updated: May 26, 2026

4.0

(5)

177

runners

#1.

Carnedd Dafydd & Carnedd Llewelyn loop from the Ogwen Valley

19.7km

02:50

930m

930m

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

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Hard

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

Hard
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36

runners

4.24km

00:29

110m

110m

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate

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

Hard

9

runners

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

Hard
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Tips from the Community

Clive G
January 27, 2026, Pen Yr Ole Wen

A steep and relentless pull up from Ogwen Cottage to the gateway of the Carneddau. It offers staggering views across the Ogwen Valley to the Glyderau.

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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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Clive G
October 27, 2025, Glyder Fawr Summit

A wonderful spiky summit with fine views to Yr Wyddfa and into Ogwen Valley. The summit itself is a scramble over very large jumbled boulders.

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Clive G
October 27, 2025, Y Garn Summit

Y Garn is a fine hill, usually climbed from Ogwen Valley by it's West ridge, or as part of the walk along the Glyders range between Elidir Fawr and the Glyders themselves. There is however another way up, the East Ridge, which is a Grade 2 scramble and starts from Llyn Idwal.

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Clive G
October 16, 2025, Carnedd Dafydd

A high mountain with reasonable length walk-ins. Good scrambling route on it's north side that gives fine views of the 'Balck Ladders' cliff face.

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Clive G
October 12, 2025, Bwlch Tryfan

A meeting of the ways as well as the col between Tryfan and Glyder Fach

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Clive G
October 12, 2025, Bwlch Tryfan

The high pass between Tryfan and Glyder Fach is also a crossroads for a number of paths - down to the Ogwen valley, but also up to Tryfan and to Glyder Fach via the Bristly Ridge or the bypass route.

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Lovely views but tricky summit to find boulders everywhere you need to climb up to the summit if wet would be unsafe cantilever stone looks amazing only problem with glyders is very bad on the foot but really enjoyed it I did tryfan north face then down the south side up the loose scree that was some climb and half top of glyders then Down one hell of a loose scree up y garn then down devils kitchen I wouldn't advise going down that if you are not good on your feet it's hell I've done it both ways going up is so much easier going down devils kitchen is really bad

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Frequently Asked Questions

What kind of terrain can I expect on the running routes around Llyn Ogwen?

The terrain around Llyn Ogwen is quite varied, offering diverse conditions for runners. You'll find relatively flat paths, particularly along the lakeshore, but also uneven, rocky sections and even some boggy areas. The routes range from moderate lakeside trails to challenging mountain paths with significant elevation gains, set within the dramatic Ogwen Valley.

Are there any running routes suitable for beginners or those looking for an easier jog?

While many routes in the area are challenging, there are options for less strenuous jogs. The Cwm Idwal Walk is a moderate 2.6-mile (4.2 km) path offering dramatic glacial scenery without extreme difficulty. The popular Llyn Ogwen Circular Walk, though not a komoot route in this guide, is also a moderate option for experiencing the lakeshore views, but be prepared for some technical sections and a portion along the main road.

What are some of the more challenging trail running options in the Llyn Ogwen area?

For experienced trail runners, Llyn Ogwen serves as a gateway to several demanding mountain routes. Options include the Glyder Fawr & Glyder Fach loop from Ogwen Cottage, a difficult 6.3-mile (10.1 km) path with significant elevation, or the even longer Carnedd Dafydd & Carnedd Llewelyn loop from the Ogwen Valley, which covers 12.2 miles (19.7 km) through majestic mountains.

Are there any circular running routes around Llyn Ogwen?

Yes, there are circular running routes available. The Pen yr Ole Wen and Llyn Ogwen Loop is a challenging 4.4-mile (7.2 km) circular route that offers stunning views. Additionally, the Llyn Ogwen Circular Walk (approx. 2.9 miles) is a popular option for experiencing the lake, though it includes some technical sections and a road portion.

What natural features or landmarks can I see while running near Llyn Ogwen?

The Llyn Ogwen area is rich in natural beauty and landmarks. You'll be running amidst the dramatic Ogwen Valley, encircled by majestic peaks like Tryfan, Pen yr Ole Wen, and the Glyderau mountains. The Llyn Ogwen itself is a beautiful ribbon lake, and at its western end, you can find the scenic Ogwen waterfall. Many routes also offer expansive mountain vistas and views of glacial scenery, particularly on the Cwm Idwal Walk.

Is Llyn Ogwen a good place for family-friendly running or walks?

While some routes are challenging, there are options suitable for families. The Cwm Idwal Walk is a moderate path that many families enjoy for its dramatic scenery. For a less strenuous option, parts of the Lon Las Ogwen Cycle Route, an off-road trail following old railway paths, can be suitable for walking or gentle jogging with children, offering a scenic experience towards the coast.

Are dogs allowed on the running trails around Llyn Ogwen?

Generally, dogs are welcome on trails in Eryri National Park (Snowdonia), but it's crucial to keep them under close control, preferably on a lead, especially near livestock. Always follow the Countryside Code. Specific restrictions might apply in certain areas or during lambing season, so it's best to check local signage or the park authority's guidelines before you go.

Where can I park when visiting Llyn Ogwen for a run?

There are several parking options around Llyn Ogwen. The Ogwen Visitor Centre and Snack Bar is a common starting point for many routes and offers parking. You might also find other designated parking areas, such as the Free Parking Area in Eryri National Park, which can be convenient for accessing various trails.

How can I get to Llyn Ogwen using public transport?

Llyn Ogwen is accessible by public transport, though services might be less frequent than in urban areas. The Snowdonia Sherpa bus service operates routes through the Ogwen Valley, connecting to towns like Betws-y-Coed, Capel Curig, and Bangor, which have train connections. It's advisable to check the latest bus timetables before planning your trip, especially outside of peak season.

What do other runners say about the jogging routes in Llyn Ogwen?

The running routes in Llyn Ogwen are highly regarded by the komoot community, with an average score of 4.0 stars from over 7 reviews. More than 400 runners have used komoot to explore the varied terrain. Reviewers often praise the majestic mountain scenery, the diverse challenge of the trails, and the breathtaking views of peaks like Tryfan and the Glyderau.

When is the best time of year to go running in Llyn Ogwen?

The best time to go running in Llyn Ogwen largely depends on your preference and experience. Spring and autumn offer cooler temperatures and stunning scenery with fewer crowds, though weather can be unpredictable. Summer provides longer daylight hours and generally warmer conditions, but trails can be busier. Winter running is possible for experienced individuals, but requires appropriate gear and caution due to potentially harsh weather, ice, and snow on higher elevations.

Are there any less crowded running trails near Llyn Ogwen?

While popular routes like the Llyn Ogwen Circular Walk can see more visitors, exploring some of the longer, more challenging mountain loops, such as the Y Garn to Glyder Fach trail running loop, might offer a more solitary experience. Early mornings or weekdays outside of peak season are generally the best times to find quieter trails throughout the region.

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