In the early 10th century, along the tranquill headwaters of the Red Wharf Bay, a thrilling tale of a Viking invasion unfolded. According to the tale, the Vikings arrived in their longships, drawing up at Llanddona. They planned a stealthy midnight raid on the unsuspecting locals of Anglesey. The story offers a grim reckoning of a group unfazed by the serene beauty of the landscape, bent only on conquest and pillage. Meanwhile, St. Dunawd, a devout local cleric dwelling in Bangor, had a premonition of the impending calamity. By some divine intuition or mere happenstance is unknown, but he learned of the Viking invasion in a dream. Upon awakening, he rang the bells of the Bangor Cathedral that sent alarm ringing across the hills, warning the locals. Roused from their sleep, the people grasped the gravity of their situation. The men immediately picked up their arms, and under the gathered moonlight, they prepared for battle. The Viking foe, anticipating an easy victory, was taken aback by the ready and waiting warriors of Anglesey. A brutal battle ensued under the moonlight, both sides exhibiting fierce courage and determination. When dawn came, the Welsh had repelled the Viking invaders who fled to their ships. To this day, the area is known as Traeth Coch, which translates to Red Beach, named so for the bloody battle fought there. The event serves as a testament to the unyielding spirit of the Anglesey locals and their determination to protect their homeland.