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United Kingdom
Wales
North Wales
Conwy

Llyn Ogwen

The best MTB trails around Llyn Ogwen

4.4

(89)

965

riders

24

rides

Mountain biking around Llyn Ogwen offers routes through the rugged terrain of Snowdonia National Park. The area is characterized by glacial valleys, mountain passes, and the prominent lake itself. Trails often feature a mix of gravel paths, forest tracks, and some technical sections, providing varied riding experiences. The landscape includes open moorland and views of surrounding peaks, with elevations ranging from valley floors to higher mountain slopes.

Best mountain bike trails around Llyn Ogwen

  • The most popular mountain bike trail is Llyn Mymbyr – Bridge Over Llyn Mymbyr loop from Tryfan, an easy 8.9 miles (14.3 km) trail that takes 1 hour 4 minutes to complete. This route offers views of Llyn Mymbyr and the surrounding peaks.
  • Another top favourite among local mountain bikers is Llyn Ogwen – Nant Ffrancon Cycle Route loop from Bethesda, a moderate 22.3 miles (35.9 km) path. This route follows the valley floor, providing a mix of open and sheltered sections.
  • Local mountain bikers also love the Snowdonia Slate Trail Byway – Llyn Ogwen and Ogwen Obelisk loop from Bethesda, a 35.1 miles (56.5 km) trail leading through mountain passes and past historic landmarks, often completed in about 4 hours 34 minutes.
  • Mountain biking around Llyn Ogwen is defined by glacial valleys, mountain passes, and views of the Ogwen Valley. The network offers options for easy, moderate, and difficult ability levels.
  • The routes in Llyn Ogwen are highly rated by the komoot community with an average score of 4.4 stars from over 80 reviews. Nearly 1,000 mountain bikers have used komoot to explore Llyn Ogwen's varied terrain.

Last updated: May 11, 2026

5.0

(1)

11

riders

#1.

Llyn Mymbyr – Bridge Over Llyn Mymbyr loop from Tryfan

14.3km

01:05

160m

160m

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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Easy

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

Hard

4.2

(13)

75

riders

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Tips from the Community

Clive G
March 25, 2026, Llyn Ogwen

Beautiful lake, but avoid the area at Easter!

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The visitor centre is located on the A5, approximately 5 miles south of Bethesda and approximately 4 miles west of Capel Curig, on the western side of Llyn Ogwen. There are a number of facilities including toilets, disabled toilets, an information room, public wifi and a small kiosk selling hot and cold snacks. From the visitor centre you can start a range of walks and climbs in the area. The most popular is the walk to Wales' first ever national nature reserve, the beautiful Cwm Idwal, a glacial lake with a mountainous backdrop. (Cwm Idwal National Nature Reserve)

Translated by Google

11

0

Standing on this bridge you have a beautiful view of Llyn Mymbyr and the mountains behind it including Snowdon. This bridge connects Plas Y Brenin National Outdoor Centre with the forests and mountains on the other side.

Translated by Google

13

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Great section of the Slate Trail

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perfect place to take rest and enjoy the lake view!

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Nothing especially tricky or difficult, as long as you have vaguely "gravel" tyres you'll be fine. Stunning views along the way, I prefer the heading west views but it is pretty both ways.

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Lorin
March 1, 2025, Siabod Cafe

reopened in 2025, thumbs up!

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0

MCW73
November 4, 2024, Siabod Cafe

Now open everyday 0800 til 1700. Caffi Siabod is at the foot of Moel Siabod in the village of Capel Curig. Serving the local Community as well as walkers, hikers and bikers

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Frequently Asked Questions

How many mountain bike trails are there in Llyn Ogwen?

There are over 25 mountain bike trails available around Llyn Ogwen, catering to various skill levels. These routes traverse the rugged terrain of Snowdonia National Park, offering diverse riding experiences.

Are there mountain bike trails suitable for beginners in Llyn Ogwen?

Yes, Llyn Ogwen offers 5 easy mountain bike trails. A great option for beginners is the Llyn Mymbyr – Bridge Over Llyn Mymbyr loop from Tryfan, which is 8.9 miles long and provides scenic views without overly technical sections.

What kind of challenges can advanced mountain bikers expect around Llyn Ogwen?

Advanced mountain bikers can find 6 difficult trails in the Llyn Ogwen area. These routes often feature significant elevation gains and technical sections. For a challenging ride, consider the Snowdonia Slate Trail Byway – Llyn Ogwen and Ogwen Obelisk loop from Bethesda, which covers 35.1 miles and includes mountain passes and historic landmarks.

Are there any family-friendly mountain bike routes in the Llyn Ogwen area?

While specific 'family-friendly' designations vary, the easier trails are generally suitable for families with some biking experience. The Llyn Mymbyr – Bridge Over Llyn Mymbyr loop from Tryfan is an easy option that could be enjoyed by families looking for a less strenuous ride.

Where can I park when mountain biking near Llyn Ogwen?

Parking is available at several points around Llyn Ogwen. You can find designated parking at the Ogwen Visitor Centre and Snack Bar. There's also a Free Parking Area in Eryri National Park, which can be convenient depending on your chosen starting point.

What is the best time of year for mountain biking around Llyn Ogwen?

The best time for mountain biking around Llyn Ogwen is typically from late spring to early autumn (May to October). During these months, the weather is generally milder, trails are drier, and daylight hours are longer, offering optimal conditions to enjoy the glacial valleys and mountain views.

What are the conditions like for mountain biking in Llyn Ogwen during winter?

Winter mountain biking in Llyn Ogwen can be challenging due to cold temperatures, shorter daylight hours, and potentially wet, muddy, or icy trail conditions. Higher elevations may experience snow. It's crucial to check local weather forecasts, trail conditions, and be prepared with appropriate gear and safety precautions if riding during winter.

Are there any circular mountain bike routes around Llyn Ogwen?

Yes, many of the mountain bike routes around Llyn Ogwen are circular, allowing you to start and finish at the same point. An example of a moderate circular route is the Llyn Cowlyd and the Crafnant valley loop, which offers varied terrain and scenic views.

What kind of wildlife might I see while mountain biking in Llyn Ogwen?

While mountain biking in Llyn Ogwen, you might encounter various upland wildlife. Keep an eye out for birds of prey such as buzzards or kestrels soaring above, and you may spot mountain sheep grazing on the open moorland. The area's rugged landscape supports a range of species adapted to the mountain environment.

What do other mountain bikers enjoy most about the trails in Llyn Ogwen?

The Llyn Ogwen area is highly rated by the komoot community, with an average score of 4.4 stars from over 80 reviews. Mountain bikers often praise the diverse terrain, from gravel paths to technical sections, and the stunning views of the surrounding peaks and glacial valleys. The variety of routes for all abilities is also frequently highlighted.

Are there any notable landmarks or points of interest along the mountain bike trails?

Yes, the trails around Llyn Ogwen pass by several notable landmarks. You'll ride alongside the beautiful Llyn Ogwen itself, and parts of the Nant Ffrancon Cycle Route offer great views. Some routes, like the Snowdonia Slate Trail Byway, also lead past historic features in the landscape.

Can you recommend a moderate mountain bike trail in Llyn Ogwen?

For a moderate challenge, the Llyn Ogwen – Nant Ffrancon Cycle Route loop from Bethesda is an excellent choice. This 22.3-mile route follows the valley floor, providing a mix of open and sheltered sections with a good amount of elevation gain, making it a popular option for local riders.

What should I wear for mountain biking in Llyn Ogwen?

Given the variable mountain weather in Llyn Ogwen, it's best to dress in layers. Opt for moisture-wicking base layers, a mid-layer for warmth, and a waterproof and windproof outer shell. Padded shorts, gloves, a helmet, and appropriate mountain biking shoes are essential for comfort and safety.

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