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MTB trails
United Kingdom
Wales
North Wales
Gwynedd

Llyn Nantlle Uchaf

The best MTB trails around Llyn Nantlle Uchaf

3.9

(30)

260

riders

13

rides

Mountain biking around Llyn Nantlle Uchaf offers routes through a landscape characterized by glacial lakes, deep valleys, and surrounding hills. The region, located in Gwynedd, features a mix of lakeside paths and more challenging ascents into the higher terrain. Mountain bike trails in this area often follow natural contours, providing varied riding experiences.

Best mountain bike trails around Llyn Nantlle Uchaf

  • The most popular mountain bike trail is Ty'n Yr Aelgerth Cottage – Telegraph Valley (Maesgwm) loop from Betws Garmon

Last updated: July 8, 2026

4.5

(6)

35

riders

#1.

Telegraph Valley (Maesgwm) – Llyn Cwellyn loop from Betws Garmon

19.5km

01:46

500m

500m

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

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Moderate

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

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

Hard

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

Moderate

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

Easy
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Popular around Llyn Nantlle Uchaf

Hiking around Llyn Nantlle Uchaf

Cycling around Llyn Nantlle Uchaf

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Road Cycling Routes around Llyn Nantlle Uchaf

Mountain Hikes around Llyn Nantlle Uchaf

Tips from the Community

Dominiek Van Dooren
May 13, 2026, Forest Trail in Parc Cenedlaethol Eryri

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

Translated by Google

7

0

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

Translated by Google

8

0

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.

Translated by Google

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.

Translated by Google

9

0

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).

Translated by Google

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.

Translated by Google

9

0

Mike
November 1, 2025, Snowdon Ranger Hostel

I think the start and the end is probably the hardest but overall pretty easy path you can’t get lost

0

0

Lovely lunch spot with picnic benches at the waterside

0

0

Frequently Asked Questions

How many mountain bike trails are available around Llyn Nantlle Uchaf?

There are 13 mountain bike trails documented on komoot for the Llyn Nantlle Uchaf area. These routes offer a variety of experiences, from easy lakeside paths to challenging mountain ascents.

What kind of terrain can I expect on mountain bike trails near Llyn Nantlle Uchaf?

The terrain around Llyn Nantlle Uchaf is diverse, featuring glacial lakes, deep valleys, and surrounding hills. You'll find a mix of relatively flat lakeside paths and more challenging ascents into higher terrain, often following natural contours.

Are there mountain bike trails suitable for beginners or families in Llyn Nantlle Uchaf?

Yes, there are trails suitable for beginners and families. For an easier ride, consider the Llyn Llywelyn – Lôn Gwyrfai Lakeside Path loop from Rhyd-ddu. This 10.2-mile (16.5 km) route is rated easy and takes you through scenic lakeside and forest terrain.

Where can I find more challenging mountain bike routes in the Llyn Nantlle Uchaf area?

For experienced riders seeking a challenge, routes like the Telegraph Valley (Maesgwm) – Snowdon Ranger Hostel loop from Groeslon offer significant elevation gain and expansive views. This difficult route covers 25.7 miles (41.4 km).

Are there any circular mountain bike routes around Llyn Nantlle Uchaf?

Many of the mountain bike trails in the area are loops. For example, the Ty'n Yr Aelgerth Cottage – Telegraph Valley (Maesgwm) loop from Betws Garmon is a moderate 11.5-mile (18.5 km) circular route traversing a scenic valley.

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

While mountain biking is possible year-round, the spring and autumn months often offer the most pleasant conditions with cooler temperatures and fewer crowds. Summer can be excellent, but trails may be busier. Winter riding is possible, but be prepared for potentially wet and muddy conditions, and shorter daylight hours.

Are there any viewpoints or scenic spots along the mountain bike trails?

Yes, many routes offer stunning views of the surrounding landscape. Trails that ascend into higher terrain, such as parts of the Telegraph Valley (Maesgwm) – Snowdon Ranger Hostel loop from Groeslon, provide expansive vistas of the valleys and lakes, including Llyn Nantlle Uchaf itself.

What is the average duration for mountain bike rides in this region?

The duration of rides varies significantly based on the trail's length and difficulty. Easy routes like the Llyn Llywelyn – Lôn Gwyrfai Lakeside Path loop from Rhyd-ddu can be completed in about 1 hour 36 minutes, while more difficult and longer routes can take several hours.

What do other mountain bikers say about the trails in Llyn Nantlle Uchaf?

The mountain bike trails in Llyn Nantlle Uchaf are highly rated by the komoot community, with an average score of 4.0 stars from over 29 reviews. Riders often praise the scenic lake shores, varied terrain, and the mix of challenging climbs and enjoyable descents.

Are there any mountain bike routes that pass by Llyn Padarn?

Yes, some routes extend towards nearby Llyn Padarn, offering additional scenic views. For instance, the difficult Telegraph Valley (Maesgwm) – View of Llyn Padarn loop from Waunfawr provides views of Llyn Padarn and covers a distance of 20.7 miles (33.3 km).

Are there options for mountain biking near the Llanberis Lake Railway?

Yes, there are routes that pass close to the Llanberis Lake Railway. The Llanberis Lake Railway – Snowdon Inn Campsite loop from Waunfawr is a moderate 13-mile (20.9 km) route that offers a ride through this area.

Most popular routes around Llyn Nantlle Uchaf

Hikes from bus stations around Llyn Nantlle Uchaf

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