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United Kingdom
Wales
North Wales
Conwy

Llyn Geirionydd

The best MTB trails around Llyn Geirionydd

4.5

(271)

3,938

riders

64

rides

Mountain biking around Llyn Geirionydd offers diverse terrain within Snowdonia National Park, characterized by the extensive Gwydir Forest, tranquil lakeside paths, and the lower slopes of the Carneddau mountains. The landscape features a mix of woodlands, open hills, and glaciated uplands, providing varied riding experiences. Riders can expect trails that combine forest roads, tarmac, and narrower footpaths with uneven surfaces, rocks, and tree roots. This region provides a blend of natural beauty and historical elements, with remnants of lead andโ€ฆ

Last updated: May 11, 2026

4.5

(19)

125

riders

#1.

Sarn Helen and Capel Chapel loop โ€” Eryri (Snowdonia) National Park

19.5km

01:45

420m

420m

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

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Moderate

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

Easy
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Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Hard

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

Moderate

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

Moderate
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Popular around Llyn Geirionydd

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Tips from the Community

Ian Baldwin
June 26, 2025, Sarn Helen Trail

Loose rocks of all sizes across the path, not a good climb

1

0

Nice techy trails , but some of the board walks are broken , work is being done to fix them ๐Ÿ˜€

0

0

sadly some of the board walks are broken and the trails are closed , there are diversions in place .

1

0

Lorin
March 1, 2025, Siabod Cafe

reopened in 2025, thumbs up!

0

0

If you're planning to ride this route from south to north after autumn, be prepared for a wet experienceโ€”especially on a rainy day. The summit offers stunning, open views, but you'll need to tackle large, deep puddles that will likely leave your feet soaked. On the descent, expect a tricky combination of slick, leaf-covered rocks and a stream of water flowing down the trail, if heavy rain. It's a technical challenge, and even walking your bike can be risky on the slippery terrain.

0

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

0

0

Chunky at times, but stunning landscapes

0

0

This cafe has won many awards. Unfortunately the have now closed this site from 8th January 2024. Gutted.

2

1

Frequently Asked Questions

How many mountain bike trails are available around Llyn Geirionydd?

There are over 60 mountain bike trails around Llyn Geirionydd, offering a wide range of options for different skill levels. The area features 10 easy routes, 46 moderate routes, and 11 difficult routes.

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

The terrain around Llyn Geirionydd is diverse, encompassing tranquil lakeside paths, dense forest trails within Gwydir Forest, and open hills with views of the Carneddau mountains. You'll encounter a mix of forest roads, tarmac, and narrower footpaths with uneven surfaces, rocks, and tree roots, providing a dynamic riding experience.

Are there mountain bike trails suitable for beginners around Llyn Geirionydd?

Yes, there are several trails suitable for beginners. For an easier ride, consider the Creigiau Pandora Singletrack โ€“ Cyffty โ€“ Gwydir Mawr MTB Trail loop from Llanrhychwyn, which is 4.0 miles (6.4 km) long and takes you through the Gwydir Forest, incorporating lead mine ruins.

Are there challenging mountain bike routes for experienced riders?

Absolutely. For experienced riders seeking a longer and more challenging option, the Sarn Helen Roman Road โ€“ View of Penmachno Valley loop from Betws-y-coed is a 28.5 miles (45.8 km) trail leading through varied terrain, typically completed in about 4 hours 47 minutes. The region also features red-graded trails within Gwydir Forest.

What do other mountain bikers say about the trails around Llyn Geirionydd?

The mountain biking routes in Llyn Geirionydd are highly rated by the komoot community, with an average score of 4.4 stars from over 250 reviews. Riders often praise the varied terrain, the stunning views of the lake and mountains, and the blend of natural beauty with historical elements like old mine sites.

What natural features or landmarks can I see while mountain biking near Llyn Geirionydd?

You can enjoy picturesque views of Llyn Geirionydd itself, dense forests of Gwydir Forest Park, and vistas of the Carneddau mountains. A notable landmark is the Taliesin Monument on the north bank of the lake, dedicated to the 6th-century Welsh bard.

Are there any historical sites or points of interest along the mountain bike trails?

Yes, the area has a rich history of lead and zinc mining. Many trails, particularly within Gwydir Forest, pass by remnants of old engine-houses and waste tips, offering a unique historical element to the natural scenery. The Taliesin Monument is also a significant historical landmark.

Can I connect to other lakes or areas from Llyn Geirionydd by mountain bike?

Yes, a strenuous 4.2-mile (6.8 km) trail links Llyn Geirionydd to the nearby Llyn Crafnant, offering continuous views of both lakes. Additionally, Llyn Geirionydd is near the Traws Eryri (Trans Snowdonia) route, a 124-mile multi-terrain trail designed for mountain bikes, utilizing forest fire roads, byways, and ancient drover's tracks across Snowdonia National Park.

Is there parking available for mountain bikers at Llyn Geirionydd?

Yes, free parking is available at Llyn Geirionydd, making it a convenient base for starting your mountain biking adventures. You'll also find toilets and picnic areas there.

Are there any circular mountain bike routes around Llyn Geirionydd?

Many of the trails in the area are designed as loops. For example, the Sarn Helen and Capel Chapel loop โ€” Eryri (Snowdonia) National Park is a popular moderate circular route that follows parts of an ancient Roman road network.

Is Llyn Geirionydd a good destination for family-friendly mountain biking?

The Gwydir Forest Park, which surrounds Llyn Geirionydd, offers a network of trails with varying difficulties. While some trails are challenging, there are easier, less technical routes suitable for families looking for a more relaxed ride. The availability of picnic areas also adds to its family-friendly appeal.

What is the best time of year to go mountain biking around Llyn Geirionydd?

The best time to go mountain biking around Llyn Geirionydd is generally during the spring, summer, and early autumn months when the weather is milder and trails are drier. However, the varied terrain means conditions can change, so always check local weather forecasts before heading out.

Are there places to eat or drink near the mountain bike trails?

While Llyn Geirionydd itself offers picnic areas, you'll find cafes, pubs, and accommodation options in nearby towns and villages such as Betws-y-Coed, which is a popular hub for visitors to Snowdonia National Park.

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