Celtic Sea

sea west of the English Channel

archipelago and local government district off the south-westernmost point of mainland Britain

small islet in the Atlantic Ocean

The Brisons (, the present participle of briser meaning 'shoal of rocks' or literally 'breaker') is a twin-peaked islet in the Celtic Sea situated 1 mile (1.6 km) offshore from Cape Cornwall in Cornwall, on the south-western coast of Great Britain.