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
Church Island (Menai Strait) the two World Wars. This is also the best place on the island from which to view the Menai Strait and the two bridges that cross it. In 2002, little egrets bred in Wales for the first time on a small islet just off Church Island. Church Island (Menai Strait) Church Island () is a small island in the Menai Strait on the shores of Anglesey to which it is attached by a short causeway that is reachable only on foot off the Belgian Promenade. The whole of the island is taken up with St Tysilio's church, constructed in the