Newborough Beach (also known as Traeth Llanddwyn) is a 3½ mile long sandy beach reaching from Llanddwyn Island to Abermenai Point. The shore is mostly fine sand with small amounts of shingle, backed by dunes. Behind the dunes are Newborough Forest and the nature reserve of Newborough Warren. Parking is at a car park in the forest, reached by turning off in Newborough village along Llys Rhosyr which leads to a toll road. Facilities at the car park include toilets, cold water showers, picnic tables, barbecue areas, cycle stands, drinking water and usually refreshment vans in summer. Access to the beach is a short walk over the dunes.
A dog ban operates on the section of the beach west of the main access point, from 1st April to 30th September. Swimming is generally safe on the main section of the beach, but there are currents towards Abermenai Point. Red squirrels can often be seen in the forest, and flora to be found in the warren include marsh and dune helleborines, pyramidal and spotted orchids, butterwort, adder's tongue and round-leaved wintergreen. The forest has various waymarked trails including a 6.8 mile route for runners.