Holy Island, Anglesey Rhoscolyn, and Four Mile Bridge. Around of the Anglesey Coastal Path is on Holy Island. Peripheral islands and stacks include North Stack, and South Stack, with its famous lighthouse. Before – and even after – the construction of lighthouses, the cliffs and jagged rocks of the island were a great danger to sailors. Holy Island, Anglesey Holy Island (, 'the island of (Saint) Cybi') is an island () on the western side of the larger Isle of Anglesey, Wales, from which it is separated by a narrow, winding channel. It is called "Holy" because of the high concentration of standing
West Mouse West Mouse West Mouse (Welsh: Maen y Bugail) is an islet lying off the north-west coast of Anglesey, Wales. Its maximum dimensions are , with an area of . It is located in an area of notoriously strong tides. Because of this, at least three shipwrecks lie near it, making it a popular diving location. There is now a white beacon on the island which is used as a navigational aid if lined up with two other beacons, one on the Anglesey mainland and another on Coal Rock, an islet a mile and a half north. The area also host