Wheal Martyn Clay Works

Clay pits and Victorian machinery don't sound like a day out, but Wheal Martyn near Stenalees changes that quite quickly. This working museum sits on the site of an actual china clay works, and you can walk around the old quarries, see the huge extractors still doing their thing, and understand why clay mining shaped this whole corner of Cornwall. The visitor centre explains the geology and the industry itself - how Cornwall became the world's clay powerhouse. It's genuinely fascinating if you care about industrial heritage and how landscapes got shaped by extraction.

The site works best for anyone interested in industrial history or geology. Kids might find the big machinery impressive for a bit, though it's not theme-park excitement. You're really here to understand how things work and what the landscape tells you. Allow two to three hours to do it properly without rushing.

It's about a fifteen-minute drive from the cluster of holiday parks around Stenalees - Tremarne Campsite, The Camping Field, and East Crinnis are all close by. This makes it an easy afternoon slot during a camping holiday in mid-Cornwall. Pair it with Lost Gardens of Heligan if you're in the area and want a proper day out. The whole region has that industrial-to-rural transition that's worth paying attention to. Worth checking their website or ringing ahead for opening hours and entry fees, as these smaller museums can be variable about when they're actually staffed.