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Road cycling routes
United Kingdom
Wales
North Wales
Conwy
Penmaenmawr

A loop of the Carneddau from Penmaenmawr

Hard

5.0

(3)

94

riders

A loop of the Carneddau from Penmaenmawr

03:27

66.2km

1,000m

Road cycling

Embark on a challenging road cycling adventure with A loop of the Carneddau from Penmaenmawr, a difficult route spanning 41.2 miles (66.2 km). You will climb a significant 3281 feet (1000 metres) over an estimated 3 hours and 27 minutes, pushing your limits through the stunning Welsh landscape. As you…

Last updated: April 23, 2026

Waypoints

A

Start point

Train Station

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1

17.5 km

Nant Ffrancon Valley Climb

Highlight (Segment) • Viewpoint

Stunning slow gradual climb out of Bethesda and into the glorious Snowdonia countryside. Jam packed with incredible view of lakes and mountains.

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2

40.6 km

Llyn Geirionydd Picnic Spot

Highlight • Trail

Llyn Geirionydd is a natural lake in the southern Carneddau or northeast Snowdonia. It isn't used for water or fish as the surrounding metal mining (no longer in use) have …

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3

62.4 km

Sychnant Pass Climb from Capelulo

Highlight (Segment) • Viewpoint

Sychnant Pass (Welsh: Bwlch Sychnant, "Dry-stream Pass") in Conwy County Borough, Wales, links Conwy to Penmaenmawr via Dwygyfylchi. Much of the pass is in Snowdonia National Park, and a large …

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B

66.2 km

End point

Train Station

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Way Types & Surfaces

Way Types

42.8 km

18.6 km

2.44 km

1.86 km

448 m

< 100 m

Surfaces

51.9 km

14.2 km

166 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 (320 m)

Lowest point (10 m)

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Weather

Powered by Foreca

Saturday 30 May

18°C

12°C

35 %

Additional weather tips

Max wind speed: 21.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to start this cycling loop in Penmaenmawr?

Penmaenmawr offers various parking options, including public car parks in the town. It's advisable to check local signage for specific parking regulations and fees, especially during peak seasons. Ensure your parking spot is suitable for the duration of your ride.

What is the best time of year to cycle this Carneddau loop?

The best time to cycle this route is generally during the warmer, drier months, from late spring to early autumn. This avoids the harsher winter conditions and allows for better enjoyment of the stunning scenery. Be prepared for changeable weather even in summer.

Are there any permits or fees required to cycle in Snowdonia National Park?

No, there are no specific permits or entrance fees required to cycle this route within Snowdonia National Park. However, standard road traffic laws apply, and cyclists should always respect the natural environment and local communities.

Is this cycling route dog-friendly?

As this is a challenging road cycling route designed for racebikes, it is not suitable for cycling with dogs. If you plan to visit the area with a dog, consider alternative walking trails where dogs are permitted and can be safely exercised, usually on a lead.

What is the terrain like on this Carneddau cycling route?

The route features mostly well-paved surfaces, but be prepared for varied conditions. Some sections, like the road to Llyn Geirionydd, have a poor surface requiring reduced speeds. You will encounter exceptionally steep ascents, with gradients sometimes exceeding 20%, such as the climb out of Trefriw, which has 19% gradients and switchbacks.

How difficult is this cycling loop?

This is classified as a 'Hard road ride' and demands 'very good fitness'. It covers 66.2 kilometers with a substantial elevation gain of 1,000 meters, featuring numerous and often 'disgustingly steep' climbs characteristic of the Snowdonia region.

What kind of views can I expect along the route?

You can expect stunning and glorious scenery throughout the loop. Riders will enjoy panoramic views of lakes and mountains, particularly in areas like the Nant Ffrancon Valley Climb. The Sychnant Pass also offers marvellous views past golf courses and through unspoiled natural beauty.

Are there any notable points of interest on the loop?

Yes, the route passes several highlights. You'll experience the challenging Nant Ffrancon Valley Climb, a scenic Llyn Geirionydd Picnic Spot, and the tough Sychnant Pass Climb from Capelulo, all offering memorable experiences and views.

Does this route connect with other cycling or walking paths?

Yes, sections of this route intersect with several other paths. You will find yourself on parts of the Conwy Valley Cycle Route, National Cycle Network Route 5, Snowdonia Slate Trail, and the Wales Coast Path (North Wales Coast), among others.

Are there any cafes or pubs suitable for cyclists in Penmaenmawr?

Penmaenmawr, as a starting point, offers local amenities including cafes and pubs where cyclists can refuel before or after their ride. It's a good idea to check opening times, especially if you're starting early or finishing late.

What should I bring for this challenging road ride?

Given the route's difficulty and varied terrain, you should bring a well-maintained racebike with appropriate gearing for steep climbs. Essential items include plenty of water, energy snacks, a repair kit, spare inner tubes, navigation tools, and suitable clothing for changeable mountain weather, including waterproofs.

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