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United Kingdom
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North Wales
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Bethesda

Sychnant Pass and Conwy Valley Loop from Bethesda

Routes
Road cycling routes
United Kingdom
Wales
North Wales
Gwynedd
Bethesda

Sychnant Pass and Conwy Valley Loop from Bethesda

Hard

4.2

(5)

230

riders

Sychnant Pass and Conwy Valley Loop from Bethesda

03:31

70.5km

1,010m

Road cycling

Embark on the Sychnant Pass and Conwy Valley Loop from Bethesda, a difficult road cycling route designed for race bikes. This challenging 43.8-mile (70.5 km) journey takes you through dramatic landscapes within Eryri National Park, offering panoramic views of the Carneddau Mountains and the Conwy Estuary. You will gain 3308…

Last updated: April 23, 2026

Waypoints

A

Start point

Parking

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1

7.46 km

Llyn Ogwen

Highlight • Natural Monument

Llyn Ogwen is a ribbon lake in north-west Wales. It lies alongside the A5 road between two mountain ranges of Snowdonia, the Carneddau and the Glyderau.

Tip by

2

16.6 km

Siabod Cafe

Highlight • Cafe

This cafe has won many awards.
Unfortunately the have now closed this site from 8th January 2024.
Gutted.

Tip by

3

49.1 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 …

Tip by

B

70.5 km

End point

Parking

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Way Types & Surfaces

Way Types

43.4 km

23.3 km

2.44 km

974 m

424 m

Surfaces

61.5 km

8.99 km

< 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 (320 m)

Lowest point (10 m)

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Weather

Powered by Foreca

Thursday 7 May

14°C

5°C

29 %

Additional weather tips

Max wind speed: 12.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How challenging is the Sychnant Pass and Conwy Valley Loop from Bethesda for road cyclists?

This route is classified as difficult for racebike cyclists. It features significant climbs, particularly the Sychnant Pass itself, which has sections with average gradients up to 12.5%. The broader Conwy Valley also includes demanding ascents, requiring very good fitness.

What is the terrain like on the Sychnant Pass section of the route?

The Sychnant Pass is a challenging climb with steep gradients. The road at the summit is notably narrow, and visibility can be restricted by deep shade and low-level sunshine. While surfaces are generally well-maintained, cyclists should be prepared for close encounters with motor vehicles, horses, and walkers due to the lack of designated cycling space.

Is this route suitable for beginner road cyclists?

Given its 'difficult' grading and significant elevation gain of over 1000 meters, this route is generally not recommended for beginner road cyclists. It requires a good level of fitness and experience with challenging climbs and narrow road conditions.

Where can I park to start the Sychnant Pass and Conwy Valley Loop from Bethesda?

While specific parking details for a loop starting precisely in Bethesda are not provided, Bethesda serves as a good starting point for exploring the region. You would typically look for public parking facilities within Bethesda itself to begin your ride.

What scenic viewpoints and landmarks will I encounter on this route?

You'll experience breathtaking dramatic landscapes and panoramic views throughout the route. Highlights include the stunning Llyn Ogwen, the challenging Sychnant Pass Climb from Capelulo, and views of the Carneddau Mountains, Conwy Estuary, and majestic Conwy Castle. The pass itself offers a mix of rolling hills, steep cliffs, and lush valleys.

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

The scenery changes with the seasons, from vibrant greens in spring and summer to rich reds and golds in autumn. Spring, summer, and early autumn generally offer the most favorable weather conditions for cycling, though you should always check local forecasts for wind and rain, especially in mountainous areas.

Are dogs allowed on this cycling route?

This is a road cycling route that primarily uses public roads. While there are no specific restrictions against dogs on public roads, it's generally not advisable to bring dogs on a racebike route of this difficulty and length due to safety concerns for both the dog and the cyclist, especially on narrow sections like Sychnant Pass.

Do I need any special permits or pay an entrance fee to cycle this route?

No, you do not need any special permits or to pay an entrance fee to cycle this route. The route primarily uses public roads within Eryri National Park (Snowdonia), which are freely accessible. However, standard road cycling regulations apply.

What are the regulations for cycling within Eryri National Park (Snowdonia)?

As this route is within Eryri National Park (Snowdonia), cyclists should adhere to the Highway Code and respect other road users. While there are no specific cycling permits required for public roads, always be mindful of local wildlife, keep noise to a minimum, and leave no trace. Be aware that some sections of the route, particularly the Sychnant Pass, are narrow and shared with motor vehicles, horses, and walkers.

Are there places to stop for food or drink along the way?

Yes, the route passes by Siabod Cafe, which is a good option for a break. The Conwy Valley area also has various cafes, pubs, and accommodation options, particularly in towns like Betws-y-Coed, which you might pass through or near depending on your exact loop.

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

Yes, the route intersects with several other paths. Notably, it covers significant sections of the Conwy Valley Cycle Route (29%), Snowdonia Slate Trail (18%), and National Cycle Network Route 5 (15%). Smaller portions also overlap with the Wales Coast Path (North Wales Coast) and National Cycle Network National Route 82.

Nearby routes

Hard

5.0

725

Pen y Pass and Beddgelert from Bangor loop — Parc Cenedlaethol Eryri / Snowdonia National Park

03:32h

74.7km

950m

Trail Reviews

Randonneurs
April 16, 2022, Rhos Social+ Alan Williams

The social ride of Rhos On Sea cycle club led by Alan took us to Betws y Coed but John Paul Jones and I extended the route around the spectacular Ffrancon which we never tire of.

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