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Carnon Viaduct – Poldice Valley Mining Ruins loop from Carnkie

Routes

Bike touring routes & trails

Carnon Viaduct – Poldice Valley Mining Ruins loop from Carnkie

Hard

riders

Carnon Viaduct – Poldice Valley Mining Ruins loop from Carnkie

06:16

94.4km

1,140m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: April 19, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Cornwall National Landscape

Waypoints

Start point

Bus stop

Get Directions

11.5 km

Carnon Viaduct

Highlight • Historical Site

This Old Rail & Road Bridge is an amazing part of Engineering work, people just walk, run, bike ride or horse ride under neath this strucktour & dont and notice, a great pity.

Tip by

18.1 km

The King Harry Ferry has been carrying passengers from St Mawes and the Roseland Peninsula with Feock, Truro and Falmouth since 1888. The ferry, which is one of only five chain ferries in England, operates every 20 minutes daily and takes 7 minutes. It is also good for the planet as it carries over 300,000 cars every year, saving around 1.7 million kg of CO2! Tickets for cyclists cost £1 each way. You can find more information, here: falriver.co.uk/ferries

Tip by

25.9 km

Point Hills Arsenic Refinery Chimney

Highlight • Historical Site

Point Hills Arsenic Refinery was run by the British Arsenic Company, which became the Cornwall Arsenic Company. The arsenic works closed at the beginning of World War Two after being active for a century. The chimney has been preserved and is all that remains of the arsenic works.

Tip by

28.9 km

Poldice Valley Mining Ruins

Highlight • Viewpoint

Poldice Valley is a beautiful spot with a rich mining history. A mine has existed in the valley as far back as the 16th century, extracting tin ore and copper from the area. The Portreath Tramroad was opened in 1812 to transport the materials to Portreath harbour. The mines slowly declined towards the end of the 19th century and ceased operating in 1930. Today, you can still see many ruined mine buildings and mineshafts in the valley.

Tip by

63.3 km

View of St Michael's Mount

Highlight • Castle

From here is a great view of St Michael's Mount, a tidal island that is home to a castle and a church. Access to the island is possible by foot across a causeway at low to mid tide.

Looked after by the National Trust, you can visit St Michael's Mount, which is still home to a community of people, cut off from the mainland at every high tide. See their website for further details nationaltrust.org.uk/st-michaels-mount

The site is historically linked to Mont St Michael in Normandy, which is a very similar tidal island.

Tip by

67.0 km

Penzance Harbour

Highlight • Structure

A popular coastal town, Penzance is the most westerly town in Cornwall. The town has plenty to see and do: eating fish and chips by the harbour, visiting Branwell House which was once home to the Bronte sisters, or wandering in Morrab Gardens.

You can find more information, here: penzance.co.uk

Tip by

68.9 km

Mount's Bay Cycle Path

Highlight • Beach

It's quiet cycling on this car-free cycle path/walking path along Mount's Bay.

Translated by Google •

Tip by

72.2 km

View of St Michael's Mount

Highlight • Monument

Behind the church, between private gardens, there is a superb view of St. Michael's Mount

Translated by Google •

Tip by

94.4 km

End point

Bus stop

Way Types & Surfaces

Way Types

72.0 km

11.0 km

4.09 km

3.53 km

3.29 km

375 m

172 m

Surfaces

56.3 km

31.7 km

6.03 km

265 m

243 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (200 m)

Lowest point (0 m)

Weather

Wednesday 8 July

22°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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Carnon Viaduct – Poldice Valley Mining Ruins loop from Carnkie

Carnon Viaduct

King Harry Ferry

Point Hills Arsenic Refinery Chimney

Poldice Valley Mining Ruins

View of St Michael's Mount

Penzance Harbour

Mount's Bay Cycle Path

View of St Michael's Mount

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