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MTB trails
United Kingdom
Wales
North Wales
Gwynedd

Llyn Cwellyn

The best MTB trails around Llyn Cwellyn

4.1

(100)

1,047

riders

32

rides

Mountain biking around Llyn Cwellyn offers a diverse landscape for riders of all abilities. The region is characterized by the expansive lake itself, surrounded by the foothills of Snowdonia, providing a mix of challenging ascents and scenic valley trails. Riders can expect varied terrain, from forest paths to open mountain tracks, with significant elevation changes in some areas. The area's natural features, including its prominent lake and surrounding hills, define the mountain biking experience.

Best mountain bike trails around Llyn Cwellyn

  • The most popular mountain bike trail is Snowdon Summit (Yr Wyddfa) – Snowdon Ranger Path loop from Snowdon Ranger, an 8.0 miles (12.9 km) trail that takes 2 hours 2 minutes to complete. This difficult route offers substantial climbs and panoramic views towards the summit.
  • Another top favourite among local mountain bikers is Llyn Llywelyn – Lôn Gwyrfai Lakeside Path loop from Rhyd-ddu, an easy 10.3 miles (16.5 km) path. This route features a scenic lakeside path and passes through varied natural landscapes.
  • Local mountain bikers also love the Ty'n Yr Aelgerth Cottage – Telegraph Valley (Maesgwm) loop from Betws Garmon, an 11.5 miles (18.5 km) trail leading through Telegraph Valley, often completed in about 1 hour 43 minutes.
  • Mountain biking around Llyn Cwellyn is defined by its prominent lake, surrounding hills, and varied valley and forest paths. The network offers options for easy, moderate, and difficult routes, catering to different ability levels.
  • The routes in Llyn Cwellyn are highly rated by the komoot community with an average score of 4.2 stars from over 100 reviews. More than 1000 mountain bikers have used komoot to explore Llyn Cwellyn's varied terrain.

Last updated: June 24, 2026

5.0

(2)

9

riders

#1.

Snowdon Summit (Yr Wyddfa) – Snowdon Ranger Path loop from Snowdon Ranger

13.0km

02:03

890m

890m

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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Hard

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

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

Moderate

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard

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

Easy
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Popular around Llyn Cwellyn

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Tips from the Community

Marion
May 29, 2026, Yr Wyddfa

For those who go up by train and also come down again: there is only half an hour to go all the way to the summit. The path there is not difficult, but the crowds.....that makes time tight.

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One path is a bit wider than the other, but most are gravel paths. Good for walking and/or cycling.

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7

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Through the forest run many paths, wide gravel paths but also narrow paths between the trees.

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8

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

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8

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Llyn Llywelyn is a small shallow mountain lake surrounded by open moorland and forests. It is a natural spot to pause, picnic and soak up the serene atmosphere before continuing your walk.

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8

0

The path along the lake is very nice. Part of it is actually a kind of dam you walk on, with a barrier on both sides so you have to stay on the path. Because the dam is elevated, you have a good view of the lake and the surroundings.

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9

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A crossing of the Welsh Highland Railway that you must cross carefully to enter the forests of Beddgelert. The Welsh Highland Railway is a restored narrow-gauge railway with a track gauge of 597 mm (1 ft 11+1⁄2 in) in the Gwynedd region (Wales).

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9

0

Stop, look out and listen are the recommendations (to be read on the sign) that you must follow when crossing the track here. It is an unguarded crossing on this railway for tourist trains.

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9

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Frequently Asked Questions

How many mountain bike trails are available around Llyn Cwellyn?

There are over 35 mountain bike trails in the Llyn Cwellyn area, offering a diverse range of experiences for riders of all abilities.

Are there easy mountain bike trails suitable for beginners or families in Llyn Cwellyn?

Yes, Llyn Cwellyn offers 8 easy mountain bike trails. A great option for a relaxed ride is the Llyn Llywelyn – Beddgelert Forest Trail loop from Rhyd-ddu, which is 12.5 km long and takes about 1 hour 7 minutes to complete. This route is relatively flat and passes through scenic forest paths.

What are the options for advanced mountain bikers seeking a challenge?

For experienced riders, there are 12 difficult mountain bike trails around Llyn Cwellyn. The View of Llyn Llydaw – Llanberis Path loop from Rhyd-ddu is a challenging 35.3 km route with significant elevation gain, typically taking around 3 hours 14 minutes to complete.

Are there mountain bike trails with good viewpoints in the Llyn Cwellyn area?

Many trails in the Llyn Cwellyn area offer stunning views, particularly those that ascend into the foothills of Snowdonia. The View of Llyn Llydaw – Llanberis Path loop from Rhyd-ddu provides expansive vistas of the surrounding landscape and lakes.

Are there circular mountain bike routes around Llyn Cwellyn?

Yes, most of the mountain bike trails in the Llyn Cwellyn area are designed as circular routes, allowing you to start and finish at the same point. For example, the Ty'n Yr Aelgerth Cottage – Telegraph Valley (Maesgwm) loop from Betws Garmon is an 18.5 km circular trail.

What is the typical duration for mountain bike trails in Llyn Cwellyn?

Trail durations vary significantly based on difficulty and distance. Easy routes like the Llyn Llywelyn – Beddgelert Forest Trail loop from Rhyd-ddu can be completed in just over an hour, while more challenging routes can take upwards of three hours or more.

Is parking available for mountain bikers in Llyn Cwellyn?

Parking is generally available at common starting points for trails around Llyn Cwellyn, often near villages like Rhyd-ddu or Snowdon Ranger. It's advisable to check specific route descriptions for detailed parking information, as some car parks may have fees or limited spaces.

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

The mountain bike trails around Llyn Cwellyn are highly rated by the komoot community, with an average score of 4.2 stars from nearly 100 reviews. Riders often praise the diverse terrain, from scenic lakeside paths to challenging mountain ascents, and the stunning views of the lake and Snowdonia foothills.

Are the mountain bike trails around Llyn Cwellyn suitable for winter riding?

While some lower-lying trails may be accessible, winter riding in Llyn Cwellyn, particularly on higher ground, can be challenging due to adverse weather conditions, ice, and snow. It's crucial to check local weather forecasts and trail conditions before heading out during winter months and to be prepared for colder temperatures and potentially slippery surfaces.

Are there any mountain bike trails near Llyn Cwellyn with a cafe nearby?

Many trails start or pass through villages like Rhyd-ddu or Betws Garmon, where you can often find local cafes or pubs for refreshments. For instance, routes starting from Rhyd-ddu, such as the Llyn Llywelyn – Lôn Gwyrfai Lakeside Path loop, offer convenient access to amenities before or after your ride.

Are dogs allowed on the mountain bike trails in Llyn Cwellyn?

Many trails in the Llyn Cwellyn area are dog-friendly, but it's essential to keep dogs under control, especially in areas with livestock or wildlife. Always check specific trail regulations and local signage, and be mindful of other trail users.

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