Danger at St Austell Clay Pit: Trespassers Risk Lives
Rising Trespassing Crisis Threatens Lives at Trelavour Downs
The former Trelavour Downs clay pit near St Austell has become an increasingly dangerous flashpoint, with Cornish Lithium reporting a sharp rise in trespassing incidents over recent weeks. The disused mining site, once central to the region’s industrial heritage, now presents serious risks that go largely unappreciated by those venturing onto its grounds.
Local police have stepped up patrols after receiving multiple reports from site staff about intruders causing damage, being abusive, and ignoring safety warnings. What’s particularly concerning is that some trespassers have been children—young people who may not fully grasp the genuine perils surrounding them. St Austell Police neighbourhood teams are now actively investigating these incidents and urging parents and guardians to keep young people away from the site.
The clay pit’s industrial past has left behind a landscape transformed by extraction work. Decades of mining operations left gaping voids, unstable edges, and pools of deep, cold water. These aren’t features to explore or photograph—they’re serious environmental hazards that have claimed lives in similar locations across Cornwall.
Why This Site Is So Dangerous—And Why Staff Are Being Threatened
Walking around the former Trelavour Downs site is like navigating a minefield of invisible dangers. The most obvious threats are the sheer vertical drops—some plunging 40 metres or more—and expansive pools of standing water that developed as the clay extraction stopped and groundwater accumulated. The combination is lethal. Falls from height or immersion in freezing water can prove fatal within minutes, yet trespassers often seem oblivious to these risks.
Cornish Lithium’s staff members have found themselves in an impossible position. When they confront trespassers, they’re sometimes met with aggression and abuse. This isn’t simply a matter of property protection; it’s a safeguarding issue. Staff worry about liability, their personal safety, and the moral burden of witnessing dangerous behaviour they’re powerless to prevent.
The situation has also created a wider headache for emergency services. Should a trespasser require rescue, already-stretched local fire, ambulance, and coastguard teams would need to mobilise complex operations in challenging terrain. A rescue attempt at an unstable clay pit edge could endanger the very people trying to help. This diverts critical resources away from genuine community emergencies across the St Austell and wider mid-Cornwall area.
What Residents Must Do—And What Comes Next
If you’re thinking of visiting Newquay for a getaway, the Cornish coast offers incredible legitimate attractions—from the stunning Fistral Beach to countless dog-friendly accommodation options that welcome families with pets. Yet some residents are drawn to industrial heritage sites instead, seeing abandoned clay pits as adventure destinations. This mentality needs to change.
St Austell Police are encouraging residents to report any trespassing activity at Trelavour Downs immediately. If you see groups heading toward the site, contact police on 101. If you spot an active emergency, call 999. Parents should have direct conversations with their children about why these sites are off-limits—it’s not about spoiling fun, it’s about preventing tragedy.
Cornish Lithium continues working on site security, though comprehensive fencing of the entire area remains costly and complex. The company is also liaising with police on further deterrents. In the coming weeks, expect increased police patrols and potential prosecutions for those caught trespassing. The message from local authorities is unambiguous: this site is not for public access, and anyone venturing there does so at catastrophic risk.
Source: Trespassers ‘risking life’ and causing damage at former clay pit
