Trearddur Bay sits on the western shore of Holy Island, where the Irish Sea meets rugged limestone cliffs. This village is famous for its wide sandy cove and the ancient burial ground known as Towyn Capel. Excavated in 2003, this site reveals the deep history of the Anglesey coast. My top tip is to follow the coastal path toward the sea arches at Bwa Gwyn. You can watch the waves crash through the stone for free. Small boats launch from the sheltered slipway for fishing trips or visits toward South Stack. Rare seabirds nest on the high rocks above the rolling surf. The scent of salt and gorse fills the narrow coastal lanes. Life here follows the rhythm of the tides. It is a genuine spot for an island break.