China clay, or kaolin, was discovered in Cornwall in 1746 by William Cookworthy.
The clay extracted from this region is essential in the production of paper, ceramics, paint, and cosmetics.
The site contains a preserved 'clay works' with original Victorian equipment left exactly as it was when production ceased.
St Austell’s iconic 'white mountains' are actually massive waste tips created by the byproduct of the clay mining process.
The 35-foot water wheel at the center of the museum was used to power the crushing machinery required for processing clay.
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.
The viewing platform overlooking the active Great Beam clay pit, which provides a high-contrast view of the white, terraced landscape.
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.
Do not wander off the marked woodland trails, as the surrounding area is often active industrial land with unstable ground.
Open daily throughout the year, though outdoor trails may be restricted during periods of extreme weather.