Trearddur Bay is situated within a couple of miles of the town of Holyhead. The beach has a sheltered and marked bathing area with rockpooling and rambling, it is also popular for water sports including canoeing, surfboarding and water skiing as well as sea fishing and sailing. Just south of the village is the Porth Diana Nature Reserve, home of the Spotted Rock Rose, Anglesey's county flower.
Blue Flag & Seaside Award beach. Toilets, shops, cafes and restaurants. Parking with charge, Dod restrictions apply May to end September.