Trevone Beach, dusk
Looking west from Roundhole Point
PoE 16 Trevone loop a 6 miles
PoE 16 Trevone loop b 2 miles
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Reaching from Harlyn Bay to Tregirls farm this eight includes sight of a round hole, a chimney like daymark and several sandy coves.
The Round Hole appears on the surface of Roundhole Point. It is a round hole of some 30 feet in circumference that falls to sea level. A tunnel connecting it to the ocean can be seen from the landward side.
Loop a falls and rises towards Stepper Point at the mouth of the River Camel. It is marked by a chimney like structure that can be seen from many nautical miles. In reaching the daymark strangely shaped offshore rocks are passed.
PoE14b is a short loop with a rather ethereal quality to its coastal section. The cliff is low. When the tide is out acres of low lying slate are revealed, leaving rock pools that attract avian and human life. The path has fallen and been diverted at one point.
Then Harlyn Bay emerges - a vast cove of sand. And the route takes to the road and fields to regain its start point.
Trevone Beach, dusk
Looking west from Roundhole Point
Controvesy exists over how round holes were formed. Some say witches are responsible for these peculiar gaps in the landscape, some claim them to be mining scars, some believe the hole was caused by the action of sea on cliff. A fuller explanation of this last theory follows.
The prevailing cliff is striated and made up of layers of soft and hard rock. As the sea wears away soft rock, the alterante layers of hard rock weaken and fall. Over time, a cave is created. Perhaps at some inland spot the geology changes, or perhaps the mechanics of sea energy raging through a tunnel led to the next stage in the round hole's development. For whatever reason, the force of the sea's energy turn upwards and a cavern began to take shape. As this cavern grew it weakened the area above until, no longer able to hold its own weight, the roof collapsed. The resultant debris would then have been washed to sea with each passing tide.
My own preferred version is that the sea formed a cave as described above. A passing miner inspected this cave and asked the local witch to check it out for minerals. The witch, in complying with the request, chanted the wrong spell and her cauldron exploded with sufficient ferocity to blow a hole in the land.