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Museums

Wheal Martyn Clay Works

4.6 · 1,163 reviews
Industrial and educational
Wheal Martyn Clay Works, Carthew, Saint Austell PL26 8XG, United Kingdom
Interesting facts
1

China clay, or kaolin, was discovered in Cornwall in 1746 by William Cookworthy.

2

The clay extracted from this region is essential in the production of paper, ceramics, paint, and cosmetics.

3

The site contains a preserved 'clay works' with original Victorian equipment left exactly as it was when production ceased.

4

St Austell’s iconic 'white mountains' are actually massive waste tips created by the byproduct of the clay mining process.

5

The 35-foot water wheel at the center of the museum was used to power the crushing machinery required for processing clay.

Overview

Wheal Martyn Clay Works is the UK's only museum dedicated to the history of the china clay mining industry. Located within a former Victorian clay pit, the site features 26 acres of woodland trails and industrial heritage displays. Visitors can view the UK's largest working water wheel, which spans 35 feet in diameter. The museum grounds include original drying kilns, settling tanks, and historic mining machinery. An indoor discovery center provides a chronological overview of clay extraction techniques. The site offers a panoramic view over the active Great Beam clay pit. It serves as the gateway to the St Austell Clay Country, a landscape shaped by centuries of mineral excavation.

Photo spot

The viewing platform overlooking the active Great Beam clay pit, which provides a high-contrast view of the white, terraced landscape.

Insider tips

Wear sturdy, comfortable footwear as the site involves significant walking on uneven, historic terrain.

Check the 'pit view' platform early in your visit to ensure you have time to observe the active mining operations.

Bring a waterproof jacket, as the majority of the museum exhibits are located outdoors across the 26-acre site.

What to avoid

Do not wander off the marked woodland trails, as the surrounding area is often active industrial land with unstable ground.

Good to know

Open daily throughout the year, though outdoor trails may be restricted during periods of extreme weather.

Plan your visit
Typical visit
2.5-3 hours
Best time to visit
Mid-morning on a clear weekday to avoid weekend crowds and ensure better visibility of the pit views.
Address
Wheal Martyn Clay Works, Carthew, Saint Austell PL26 8XG, United Kingdom
50.364, -4.806
Get directions
Details
Key exhibits35-foot working water wheel, Victorian clay drying kilns, and active clay pit viewing platform.

Frequently asked

Plan for about 2.5-3 hours to see the highlights.

The best time to visit is Mid-morning on a clear weekday to avoid weekend crowds and ensure better visibility of the pit views..

The viewing platform overlooking the active Great Beam clay pit, which provides a high-contrast view of the white, terraced landscape.

Close by you'll find Eden Project, The Lost Gardens of Heligan, Shipwreck Treasure Museum.