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Routes
Road cycling routes
United Kingdom
Wales
North Wales
Conwy
Betws-Y-Coed

Snowdon Circuit

Hard

5.0

(5)

166

riders

Snowdon Circuit

04:40

91.6km

1,220m

Road cycling

The Snowdon Circuit is a difficult road cycling route, stretching 56.9 miles (91.6 km) with a significant elevation gain of 3993 feet (1217 metres). You can expect to complete this challenging ride in about 4 hours and 40 minutes. As you pedal, you will pass picturesque lakes like Llyn Dinas…

Last updated: April 23, 2026

Waypoints

A

Start point

Parking

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1

25.8 km

Llyn Dinas

Highlight • Natural

Beautiful views across Llyn Dinas from the A498. Snowdon is to the north and the Watkin path starts a little further northeast up the road. Views south up onto Mynydd Llyndy which is managed by the National Trust.

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2

63.5 km

Pete's Eats Cafe

Highlight • Cafe

Nothing short of an institution, Pete's Eats is the only place to be when rain cancels play Llanberis. Of all the food and drink available on the impressively extensive menu, …

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3

72.7 km

Llanberis Pass – Pen-y-Pass Climb

Highlight (Segment) • Climb

Awesome mountain road from Nant Peris in the west to the top of Pen-y-pass in the east. It's a long climb up from Nant Peris or an exciting descent in …

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B

91.6 km

End point

Parking

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Way Types & Surfaces

Way Types

64.3 km

22.9 km

2.34 km

1.99 km

< 100 m

Surfaces

69.9 km

21.3 km

413 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 (360 m)

Lowest point (10 m)

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Weather

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Tuesday 5 May

13°C

4°C

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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 the Pen y Pass & Llyn Dinas cycling loop?

This challenging road cycling loop is approximately 91.6 kilometers (57 miles) long. With an average duration of around 4 hours and 40 minutes, it requires a good level of fitness due to significant elevation changes.

What is the terrain like on this road cycling route?

The route primarily features well-paved surfaces. However, be aware that some segments might be unpaved and difficult, potentially requiring you to dismount and push your bike. The loop includes demanding sections like the climb to Llanberis Pass – Pen-y-Pass Climb, which can be around 4 kilometers long with an average gradient of 6.2% and parts reaching 10% or more. Expect long, steady climbs followed by exhilarating, fast descents.

Is this cycling route suitable for beginners?

No, this road cycling loop is classified as 'difficult' and demands a very good fitness level due to its length and significant elevation gain of approximately 1,217 meters (4,000 feet). It is not recommended for beginner cyclists.

What kind of scenery can I expect along the Pen y Pass & Llyn Dinas loop?

You can expect consistently stunning and beautiful scenery throughout the loop. The route offers breathtaking views of Snowdon, Wales' highest mountain, along with picturesque lakes such as Llyn Dinas, Llyn Gwynant, Llyn Cwellyn, and Llanberis Lake. You'll traverse mountainous landscapes and valleys, with the dramatic geological features of Snowdonia National Park as a constant backdrop.

Are there any notable highlights or viewpoints along the route?

Yes, the route passes by several notable features. You'll cycle past the beautiful Llyn Dinas and tackle the challenging Llanberis Pass – Pen-y-Pass Climb. The Pen-y-Pass area itself is a significant starting point for walking paths to Snowdon's summit and offers excellent vantage points of the surrounding Snowdon Horseshoe.

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

The best time to cycle this route is generally during the warmer, drier months to avoid the harsher weather conditions that can affect Snowdonia National Park. However, be aware that the area can get very busy during peak seasons like summer and school holidays, especially around Pen y Pass.

Where can I park to access the Pen y Pass & Llyn Dinas loop?

Parking is available at Pen y Pass, though it can be very busy, especially during peak seasons. It's advisable to arrive early or consider alternative parking options and public transport if available, particularly during summer and school holidays.

Are there any cafes or facilities available along the route?

Yes, there are facilities available. For instance, you'll find Pete's Eats Cafe, which is a well-known spot. The Pen y Pass area also typically has facilities. It's always a good idea to check opening times, especially outside of peak season.

Does this cycling route intersect with other well-known paths?

Yes, this route intersects with several other paths. Notably, it covers sections of the Snowdonia Slate Trail (12%), Lôn Gwyrfai (9%), and the Cambrian Way (5%). You'll also find smaller segments of trails like Lôn Las Peris, Welsh Three Thousands, and EuroVelo 2 - Capitals Route - part United Kingdom 1.

Are dogs allowed on this cycling route?

While dogs are generally welcome in Snowdonia National Park, specific rules apply to cycling routes. As this is a road cycling route, dogs would need to be safely secured in a trailer or carrier. Always ensure your dog is under control and respect any local signage regarding livestock or protected areas.

Do I need a permit or is there an entrance fee for cycling in Snowdonia National Park?

There is no general entrance fee or permit required for cycling on public roads and designated cycle paths within Snowdonia National Park. However, standard parking fees may apply at specific car parks, such as Pen y Pass. Always adhere to the Countryside Code and any local regulations.

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5.0

725

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