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Wales
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Llanrhaeadr-Ym-Mochnant

Lake Vyrnwy Loop from Llanrhaeadr-ym-Mochnant

Hard

8

riders

Lake Vyrnwy Loop from Llanrhaeadr-ym-Mochnant

03:20

47.0km

750m

Cycling

Cycle a difficult 29.2-mile (47.0 km) loop around Lake Vyrnwy in Eryri / Snowdonia National Park, gaining 2448 feet (746 metres).

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

16 m

Llanrhaeadr-ym-Mochnant Village Centre

Highlight • Cafe

Gegin Fach tea room is a nice little coffee shop serving drinks, cake and café food.
Open Mon to Sat 9:00 - 17:00

Tip by

2

15.2 km

Lake Vyrnwy and Water Tower

Highlight (Segment) • Cycleway

Lake Vyrnwy is considered to be Wales’ most beautiful lake. To cycle around its steeply wooded shoreline is a wonderful experience and to be done at a slow cadence. This …

Tip by

3

32.9 km

Lake Vyrnwy and Dam

Highlight • Bridge

Park at the very top of the Lake if arriving in a car. Note that some sections can get closed due to rock falls at the top of the Lake near the Waterfall Car Park.

Tip by

4

37.0 km

Old Road to Vyrnwy

Highlight (Segment) • Cycleway

This used to be a road and there are a few sections of tarmac still remaining along the way. A smooth ascent from the north-east but a rockier descent towards …

Tip by

B

47.0 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

41.6 km

5.35 km

< 100 m

Surfaces

37.7 km

5.35 km

3.89 km

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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 (410 m)

Lowest point (130 m)

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Weather

Powered by Foreca

Tuesday 14 July

26°C

14°C

0 %

Additional weather tips

Max wind speed: 17.0 km/h

to get more detailed weather forecasts along your route

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Frequently Asked Questions

How long does it typically take to cycle the Llyn Efyrnwy / Lake Vyrnwy loop from Llanrhaeadr-ym-Mochnant?

This challenging touring bicycle route typically takes around 3 hours and 20 minutes to complete. However, your actual duration may vary depending on your fitness level, the number of stops you make, and weather conditions.

Is this cycling route suitable for beginners?

No, the Llyn Efyrnwy / Lake Vyrnwy loop from Llanrhaeadr-ym-Mochnant is classified as a 'difficult' bike ride. It requires very good fitness due to its length (approximately 47 km) and significant elevation gain (around 750 meters). Some segments, particularly descents towards Vyrnwy, can be rockier and more challenging, potentially requiring you to push your bike.

What is the terrain like on the Lake Vyrnwy loop?

The route features varied terrain, predominantly paved surfaces, making it suitable for road cycling. However, be prepared for some unpaved and potentially difficult sections, especially during descents which can be rockier. The 12-mile loop directly around Lake Vyrnwy consists of quiet, well-maintained country lanes. Some parts of the wider area also include gravel tracks and significant climbs.

What notable landmarks and scenery can I expect along the route?

You'll experience stunning natural beauty, including expansive views of Lake Vyrnwy, considered one of Wales' most beautiful lakes, and the surrounding Berwyn Mountains. Key landmarks include the iconic Lake Vyrnwy and Water Tower and the impressive Lake Vyrnwy and Dam. The area is also a National Nature Reserve and RSPB site, offering opportunities for birdwatching.

Where can I park to start this cycling loop?

The loop starts from Llanrhaeadr-ym-Mochnant. Parking is available within the village. Alternatively, you can find parking closer to Lake Vyrnwy itself, though starting from Llanrhaeadr-ym-Mochnant provides the full challenging experience of this specific route.

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

The best time to cycle this route is generally during the spring, summer, and early autumn months when the weather is milder and daylight hours are longer. This allows for better enjoyment of the scenery and more comfortable cycling conditions. Always check the weather forecast before you go, as conditions in Eryri / Snowdonia National Park can change rapidly.

Is the Llyn Efyrnwy / Lake Vyrnwy loop dog-friendly for cyclists?

While the area around Lake Vyrnwy is generally welcoming, specific rules for dogs on cycling routes can vary. As a National Nature Reserve and RSPB site, it's crucial to keep dogs under close control, preferably on a lead, to protect wildlife. If cycling with a dog, ensure it is well-behaved and does not interfere with other cyclists or wildlife. Always clean up after your dog.

Are there any permits or entrance fees required for cycling around Lake Vyrnwy, especially within the RSPB Nature Reserve?

There are no specific permits or entrance fees required for cycling the public roads around Lake Vyrnwy or within the RSPB Nature Reserve. However, as a protected area, visitors are encouraged to respect the environment, stay on designated paths, and follow the Countryside Code to help preserve its natural beauty and wildlife.

Are there any cafes or facilities available along the Lake Vyrnwy cycling route?

Yes, there are amenities available. You can find facilities and cafes in Llanrhaeadr-ym-Mochnant Village Centre at the start/end of your ride. Around Lake Vyrnwy itself, there are often cafes and visitor facilities, particularly near the dam and water tower, offering refreshments and restrooms.

Does the trail intersect other well-known paths?

Yes, the route briefly intersects with sections of the Glyndŵr's Way and the Abertridwr trails, offering a glimpse into these longer-distance paths.

What makes this specific Lake Vyrnwy loop from Llanrhaeadr-ym-Mochnant particularly notable?

This loop is notable for its combination of a challenging touring cycling experience with stunning natural beauty. It offers an iconic circuit around Lake Vyrnwy, showcasing engineering marvels like the Water Tower and Dam, set amidst the remote Berwyn Mountains. As a biodiversity hotspot and RSPB site, it provides exceptional opportunities for nature observation, making it a rewarding ride for those seeking both a physical challenge and immersion in Welsh countryside.

Nearby routes

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Llyn Efyrnwy / Lake Vyrnwy to Llyn Tegid / Bala Lake high pass loop — Eryri / Snowdonia National Park

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