Megiliggar Rocks
The engine houses at Trewavas and Rinsey head are on a body of granite known as the Tregonning outcrop. This is thought to be an offshoot of a much larger body of granite which also surfaces at Carn Brea near Camborne. The Tregonning outcrop ends in the area around Megiliggar Rocks, and along the coast you can see the sills and dykes where the molten magma forced its way hundreds of metres into the existing slate rocks. The light-coloured stripes in the cliffs are some of the granite sills.
On walks
- Porthleven to Rinsey Head (6.8 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.
