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Routes
Bike touring routes & trails
United Kingdom
Wales
North Wales
Gwynedd
Trawsfynydd

Lake Bala & Llyn Llanwddyn from Trawsfynydd

Hard

3

riders

Lake Bala & Llyn Llanwddyn from Trawsfynydd

06:00

84.6km

1,700m

Cycling

Cycle 52.6 miles (84.6 km) from Trawsfynydd to Lake Bala and Llyn Llanwddyn, gaining 5567 feet (1697 metres) in Snowdonia.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc Cenedlaethol Eryri / Snowdonia National Park

Waypoints

A

Start point

Parking

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1

22.9 km

Llyn Tegid (Bala Lake)

Highlight (Segment) • Viewpoint

Beautiful rolling road following the steam railway. Views over Bala.

Tip by

2

31.3 km

Hirnant Pass

Highlight (Segment) • Viewpoint

The road from Bala Lake to Lake Vyrnwy is simply one of the most challenging, scenic and highest rides through the Welsh mountains. If you’re fit enough you will find it one of the greatest rides in the British Isles.

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3

51.4 km

Bwlch y Groes Pass

Highlight • Mountain Pass

Whether on a road bike or touring, this mountain pass is not to be missed, smooth surfaces, little traffic, ups and downs all the way... watch out for the sheep..

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B

84.6 km

End point

Parking

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Way Types & Surfaces

Way Types

82.9 km

994 m

414 m

304 m

< 100 m

< 100 m

Surfaces

77.3 km

7.22 km

< 100 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (540 m)

Lowest point (170 m)

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Weather

Powered by Foreca

Wednesday 6 May

12°C

5°C

35 %

Additional weather tips

Max wind speed: 19.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How long does it typically take to complete this cycling route?

The estimated time to complete the full 84.6 km (52.6 miles) route is around 6 hours. However, this can vary significantly depending on your fitness level, the number of stops you make, and weather conditions.

What is the terrain like on the Lake Bala & Llyn Llanwddyn route?

The route primarily features paved surfaces, making it suitable for touring bikes. Be prepared for steep and narrow roads, especially in mountainous sections. While mostly paved, the wider Snowdonia area includes quiet roads and some forest tracks, so always be mindful of potential surface changes. There are significant climbs throughout the ride.

What are the main scenic highlights along the way?

You'll experience breathtaking views characteristic of Eryri National Park. Key highlights include panoramic vistas of Llyn Tegid (Bala Lake), Wales's largest natural lake, and the surrounding peaks like Aran Fawddwy. The route also offers views of Llyn Llanwddyn (Lake Vyrnwy) and passes through challenging sections like Hirnant Pass and Bwlch y Groes Pass, which is Wales's highest road pass.

Is this cycling route suitable for beginners or families?

No, this route is classified as a "Hard bike ride" requiring "Very good fitness" due to its considerable length (84.6 km) and substantial elevation gain (1,700 meters). It is not recommended for beginners or families with young children. More experienced cyclists seeking a challenging adventure will find it rewarding.

Where can I park when starting this route from Trawsfynydd?

While specific parking details for Trawsfynydd are not provided, it's advisable to look for designated public car parks within the village or near the start of the Trawsfynydd Lake Cycle Route. Always check local signage for parking restrictions and fees.

What is the best time of year to cycle this route?

The best time to cycle in Eryri National Park is generally from late spring to early autumn (May to September) when the weather is milder and daylight hours are longer. However, weather in mountainous regions can be unpredictable, so always check the forecast before you go and be prepared for all conditions.

Are dogs allowed on this cycling route?

While dogs are generally welcome in Eryri National Park, specific rules for cycling routes can vary. On shared paths, dogs should always be kept on a lead to ensure the safety of other users and local wildlife. Always follow the Countryside Code and respect local signage.

Do I need any special permits or pay an entrance fee for cycling in Eryri National Park?

There are no general entrance fees or specific cycling permits required to access Eryri National Park or to cycle this route. However, you should always adhere to the National Park's regulations, which include respecting private land, keeping gates closed, and protecting wildlife. Some specific attractions or facilities within the park may have their own charges.

Does this route connect with other cycling trails?

Yes, this route incorporates sections of several official cycling paths. You will find yourself on parts of Regional Route 13 (30% of the route), National Cycle Network National Route 82 (7%), Regional Route 14 (4%), and Regional Route 16 (2%). It also briefly uses the Llwybr Llyn Traws (Trawsfynydd Lake Cycle Route) and Pont Talardd.

Are there places to eat or stay along the route, particularly near Lake Bala or Llyn Llanwddyn?

Yes, both Bala (Llyn Tegid) and the area around Llyn Llanwddyn (Lake Vyrnwy) offer amenities. Bala is a popular town with various cafes, pubs, and accommodation options. Llyn Llanwddyn also has facilities, often associated with the reservoir's visitor services. It's wise to check opening times, especially outside peak season.

What makes this route particularly challenging?

The primary challenge comes from the significant elevation gain of 1,700 meters over 84.6 km, including formidable ascents like Bwlch y Groes Pass. This requires sustained effort and excellent physical condition. While the terrain is mostly paved, the steepness and length make it a demanding ride.

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