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United Kingdom
Wales
North Wales
Gwynedd

Llyn Cwellyn

The best traffic-free bike rides around Llyn Cwellyn

4.5

(90)

2,196

riders

18

rides

No traffic touring cycling routes around Llyn Cwellyn traverse a landscape shaped by glacial activity, featuring a deep moraine lake nestled between the Snowdon Massif and Mynydd Mawr. The terrain includes rugged mountain slopes, forested valleys, and serene lakeside paths, offering continuous views of the surrounding Snowdonia National Park. Cyclists can expect varied surfaces, from paved sections to unpaved segments, with elevation changes characteristic of a mountainous region. The area's natural environment is preserved, with parts designated as a Nature Reserve.

Best no traffic touring cycling routes around Llyn Cwellyn

  • The most popular no traffic touring cycling route is Lôn Gwyrfai Lakeside Path – Llyn y Gadair loop from Rhyd-ddu, a 10.9 miles (17.6 km) trail that takes 1 hour 44 minutes to complete. This moderate route offers scenic views of the lake and surrounding mountains.
  • Another top favourite among local touring cyclists is Llyn y Gadair – Rhyd Ddu loop from Rhyd-ddu, a moderate 12.1 miles (19.5 km) path. This route provides continuous views of the glacial lake and the dramatic mountain backdrop.
  • Local touring cyclists also love the Llyn Padarn – Llanberis Tunnel loop from Waunfawr, a 10.9 miles (17.6 km) trail leading through varied terrain including lake shores and historical areas, often completed in about 1 hour 22 minutes.
  • Touring cycling around Llyn Cwellyn is defined by glacial lakes, rugged mountain slopes, and forested valleys. 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 4.5 stars from over 90 reviews. More than 2,200 touring cyclists have used komoot to explore Llyn Cwellyn's varied terrain.

Last updated: May 1, 2026

5.0

(1)

93

riders

#1.

Lôn Gwyrfai Lakeside Path – Llyn y Gadair loop from Rhyd-ddu

17.6km

01:45

300m

300m

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

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Moderate

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

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

Moderate

Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Popular around Llyn Cwellyn

Traffic-free bike rides around Llyn Cwellyn

Traffic-free bike rides around Llyn Cwellyn

Tips from the Community

Dominiek Van Dooren
May 6, 2026, Llyn y Gadair

This lake is located near the village of Rhyd-ddu (not at the foot of Cadair Idris mountain). The lake has a surface area of 50 hectares and is situated 182 meters above sea level. According to John Leland in the 16th century, the original name was "Llyn Cadair yr Aur Frychin". The lake became famous through the sonnet Tyr Ysgol (The school building) by the poet TH Parry-Williams. (Wikipedia)

Translated by Google

5

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

5

0

From this spot, you get a view of the lake Llyn y Gadair in Eryri National Park (Snowdonia). It is a picturesque, tranquil glacial lake with a beautiful view of Yr Wyddfa (Snowdon). It is a popular destination for walks, fishing, and wild swimming.

Translated by Google

5

0

Very well-maintained gravel path from the forests of Beddgelert via the lake Llyn y Gadair to Rhyd-ddu.

Translated by Google

5

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

Mark
May 28, 2025, View of Snowdon

This is a class section, often used by MTB and Road bikers. If you look closer you can see where?

0

0

Mark
May 28, 2025, Llanberis Tunnel

Great fun for the kids. Can be cold at times but not very long so you're soon out into the sun.

0

0

What can I say... Fantastic!

0

0

Frequently Asked Questions

How many no-traffic touring cycling routes are available around Llyn Cwellyn?

There are 18 dedicated no-traffic touring cycling routes around Llyn Cwellyn featured in this guide. These routes offer a range of difficulties, from easy to difficult, ensuring options for various skill levels.

Are there any easy, family-friendly no-traffic cycling routes near Llyn Cwellyn?

Yes, for an easy and family-friendly option, consider the Pete's Eats Cafe – View of Snowdon loop from Llanberis. This route is approximately 7 km long with a gentle elevation gain, making it suitable for a relaxed ride. The Lôn Las Menai & Lôn Eifion cycleway, following an old railway trail, also provides an accessible and mostly traffic-free experience from Caernarfon.

What kind of terrain can I expect on the no-traffic touring cycling routes around Llyn Cwellyn?

The routes around Llyn Cwellyn offer diverse terrain. You'll find a mix of mostly paved surfaces, especially on routes like the Lôn Gwyrfai, but some segments may include unpaved sections. Expect varied landscapes from serene lakeside paths to forested valleys and routes with significant elevation gains as you venture into the surrounding mountains.

Are there any circular no-traffic touring cycling routes around Llyn Cwellyn?

Yes, many of the routes are circular, allowing you to start and finish at the same point. A popular moderate option is the Lôn Gwyrfai Lakeside Path – Llyn y Gadair loop from Rhyd-ddu, which offers beautiful lakeside views and mountain backdrops.

What are the best times of year to go touring cycling in Llyn Cwellyn?

The best times to cycle around Llyn Cwellyn are generally spring, summer, and early autumn. During these seasons, the weather is typically milder, and the natural scenery is at its most vibrant. Winter cycling is possible but requires appropriate gear and caution due to potentially colder temperatures and wet conditions.

What are some notable landmarks or viewpoints along the no-traffic cycling routes?

Cyclists can enjoy continuous scenic views of Llyn Cwellyn itself, the majestic Snowdon Massif, Moel Eilio, and Mynydd Mawr. The Welsh Highland Railway, which runs past the lake, also adds to the picturesque landscape. While not a highlight with a specific komoot page, the natural rock formation of Castell Cidwm (Wolf Castle) is a local point of interest near the lake.

Are there any challenging no-traffic touring cycling routes for experienced riders?

Yes, for experienced riders seeking a challenge, the Snowdon Ranger Hostel – Telegraph Valley (Maesgwm) loop from Llanberis is a difficult route covering nearly 38 km with over 1000 meters of elevation gain, offering a demanding yet rewarding experience through the Snowdonia landscape.

What do other touring cyclists enjoy most about the routes around Llyn Cwellyn?

The komoot community highly rates the touring cycling experience around Llyn Cwellyn, with an average score of 4.46 stars from 92 ratings. Reviewers often praise the stunning natural beauty, the peaceful environment of the no-traffic routes, and the diverse landscapes that include both serene lakeside paths and dramatic mountain views.

Is it possible to combine cycling with walking or hiking in the Llyn Cwellyn area?

Absolutely. Llyn Cwellyn is an excellent base for combining cycling with hiking. The Snowdon Ranger Path, one of the main routes to the summit of Snowdon, starts near the lake. You can cycle to a trailhead and then explore the walking paths, offering elevated perspectives of the lake and surrounding mountains.

Are there options for public transport that can accommodate bikes to reach the Llyn Cwellyn area?

Public transport options in Snowdonia can be limited for bikes. While local buses might operate, it's advisable to check specific services and their bike carriage policies in advance, as space is often restricted. The Welsh Highland Railway, which passes Llyn Cwellyn, does offer bike carriage on some services, but booking ahead is essential.

Where can I find parking for the no-traffic touring cycling routes around Llyn Cwellyn?

Parking is available at various points around Llyn Cwellyn, particularly in villages like Rhyd Ddu at the southern end of the lake, which serves as a starting point for several routes. Other potential parking spots may be found near popular trailheads or attractions, but it's always recommended to check local signage for parking regulations and fees.

Most popular routes around Llyn Cwellyn

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