Cornwall Cornwall Cornwall (; ) is a county in South West England in the United Kingdom. The county is bordered to the north and west by the Celtic Sea, to the south by the English Channel, and to the east by the county of Devon, over the River Tamar which forms most of the border between them. Cornwall forms the westernmost part of the South West Peninsula of the island of Great Britain. The furthest southwestern point of the island is Land's End; the southernmost point is Lizard Point. Cornwall has a population of and covers an area of . The
Rhoose Point Rhoose Point Rhoose Point () is the most southerly settlement of mainland Wales, although there are claims that Breaksea Point is the most southern point. The Vale of Glamorgan Council had installed a permanent notice verifying Rhoose Point as the most southerly part of Wales’s mainland and there is a small stone circle marking the point as well. It lies on the southern coast of South Wales and projects into the Bristol Channel. Nearby used to be a cement works. On that site there is now a development of 600 houses that has greatly extended the village of Rhoose. There