Cornwall in South West England. With an array of historical Cornish castles, gardens and over 400 beaches. It is bordered to the north and west by the Atlantic Ocean, to the south by the English Channel, and to the east by the county of Devon, with the River Tamar forming the border between them. Cornwall forms the western most part of the South West Peninsula of the island of Great Britain. The south western most point is Land's End and the southern most Lizard Point.
The Isles of Scilly are an archipelago off the southwestern tip of Cornwall. One of the islands, St Agnes, is the most southerly point in the United Kingdom, being over four miles further south than the most southerly point of the British mainland at Lizard Point.