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United Kingdom
England
South West England
Luxulyan

Treffry Viaduct & St Blazey loop from Luxulyan

Moderate

4.3

(13)

38

hikers

Treffry Viaduct & St Blazey loop from Luxulyan

03:14

11.8km

190m

Hiking

Hike the moderate 7.3-mile Treffry Viaduct & St Blazey loop through Luxulyan Valley, exploring industrial heritage and wooded scenery.

Last updated: February 26, 2026

Waypoints

A

Start point

Train Station

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1

1.71 km

Treffry Viaduct

Highlight • Historical Site

A huge viaduct/aqueduct crossing over the beautiful Luxelyan Valley. It was finished in 1842 and stands over 94 feet above the river floor.

Tip by

2

2.81 km

Carmears Waterwheel Ruins

Highlight • Viewpoint

The remains of a 30 foot waterwheel used to haul carts up the nearby tramway incline. Complete with viewing platform and old gears.

Tip by

3

11.1 km

St. Cyor's Holy Well, Luxulyan

Highlight • Natural Monument

A holy spring dedicated to St. Cyor with a C15th well house in the village of Luxulyan

Tip by

B

11.8 km

End point

Train Station

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Way Types & Surfaces

Way Types

3.12 km

2.91 km

2.66 km

1.46 km

1.16 km

441 m

Surfaces

5.73 km

3.14 km

1.25 km

1.18 km

465 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 (120 m)

Lowest point (10 m)

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Weather

Powered by Foreca

Wednesday 8 July

23°C

13°C

0 %

Additional weather tips

Max wind speed: 19.0 km/h

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Comments

May 7, 2026,Luxulyan Valley (Cornwall 2026) COR_30
What a walk!
We ended up taking a detour of over 5 km and had to go back to the viaduct at the end.


Why?
At kilometre 7.67, we would have had to cross a field.
But the field was ‘blocked off’, as you can easily see in the photo.
May 22, 2024,Luxulyan Valley
Second day in Cornwall. Because of the rain forecast, we decided to go on a forest hike in the Luxulyan Valley today.
The vegetation here is lush and almost jungle-like. And in the middle of it all is ingenious engineering from the 19th century.

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Frequently Asked Questions

Where can I park to access the Treffry Viaduct & St Blazey loop?

The trail typically starts from Luxulyan. Parking is available in the village, often near the church or community hall, providing convenient access to the trailhead. Always check local signage for any parking restrictions.

How challenging is this hike?

This route is rated as moderate. It requires a good level of fitness due to its length and some moderate ascents. The path includes a few short climbs, such as one near the start to reach the viaduct path and another approaching Trethevy Wood.

What is the terrain like on the trail?

The terrain primarily follows woodland paths and historic tramways. You can expect some moderate inclines, and the paths can sometimes be muddy, especially after rain. It's a mix of natural beauty and remnants of industrial heritage.

How long does it typically take to complete the loop?

The hike is approximately 7.3 miles (11.8 km) long and generally takes around 3 hours and 15 minutes to complete, depending on your pace and how often you stop to explore.

What are the main points of interest along the route?

The trail is rich in both natural beauty and industrial history. Key highlights include the impressive Treffry Viaduct, the ruins of the Carmears Waterwheel, and the tranquil St. Cyor's Holy Well. You'll also encounter remnants of old tramroads and the substantial granite structure of the Carmears Wheel Pit.

Is the Treffry Viaduct & St Blazey loop dog-friendly?

Yes, the trail is generally dog-friendly. However, as it passes through woodland and potentially near livestock, it's advisable to keep dogs on a lead, especially in certain sections, and always clean up after them.

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

The trail is beautiful year-round. Autumn is particularly charming when the broadleaf woodland turns golden. Spring offers fresh greenery and wildflowers. Be aware that paths can be muddy after rain, so appropriate footwear is recommended regardless of the season.

Do I need a permit or pay an entrance fee for this trail?

No, there are no specific permits or entrance fees required to hike this trail. The Luxulyan Valley is part of the Cornwall and West Devon Mining Landscape World Heritage Site, which is freely accessible to the public.

Does the trail intersect with other well-known paths?

Yes, the route incorporates sections of several other paths, including the Saints Way, the National Cycle Network Route 2 Plymouth to St. Austell, and the Velvet Path. You'll also walk along parts of the Higher Tramway and the Carmears Inclined Plane.

Are there any facilities like cafes or pubs near the trail?

While the trail itself is quite rural, you can find facilities in nearby villages such as Luxulyan and St Blazey. It's a good idea to check opening times in advance, especially if you plan to visit a specific establishment after your hike.

What makes the Treffry Viaduct so significant?

The Treffry Viaduct is a remarkable piece of industrial heritage. Built between 1839 and 1842, it was the first stone viaduct in Cornwall and uniquely served as both a tramway and an aqueduct. It's a Scheduled Ancient Monument and a key part of the Cornish Mining World Heritage site, offering spectacular views from its top.

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