Wheal Sally
Wheal Sally was situated on the east side of Kerriack Cove and Bottom Shaft was sunk to a lode containing zinc and lead, both as sulphide ore and also in metallic form. A drainage adit runs from the shaft to a hole in the cliff, just above the beach.
When the biological weapons programme at Nancuke ended, waste materials were disposed of in one of the side shafts connecting to the adit. Given how water drips down the shafts into the adit and then runs out onto the beach, the potential flaw in this strategy should be apparent. Fortunately, after an extensive clean-up operation was carried out, no traces of hazardous materials were found. The adit is now blocked by a very substantial grille.
On walks
- Portreath to Tobban Horse (7.3 mile walk)
Get the iWalkCornwall app
Download the app and use it to explore the walks and to purchase a guided route.
The app will direct you to the start of the walk via satnav.
The app guides you around the walk using GPS, removing any worries about getting lost.
The walk route is described with detailed, regularly-updated, hand-written directions.
Each time there is a new direction to follow, the app will beep to remind you, and will warn you if you go off-route.
A map shows the route, where you are at all times and even which way you are facing.
Each walk is packed with information about the history and nature along the route, from over a decade of research than spans more than 3,000 topics.
Once a walk is downloaded, the app doesn't need a phone or wifi signal during the walk.
The app counts down distance to the next direction and estimates time remaining based on your personal walking speed.
We keep the directions continually updated for changes to the paths/landmarks - the price for a walk includes ongoing free updates.
