Llandanwg Beach consists of coarse sand and pebbles backed by dunes. At the southern end is a sandy harbour, protected by a concrete breakwater, whilst to the north the shore becomes rockier. Parking is at a small P&D car park with additional roadside parking available nearby, and access to the beach is along a short tarmac path. Facilities include toilets, drinking water and a cafe. Llandanwg rail station is about 400 yards away. It's generally safe for swimming, but rip currents can occur in surf conditions.
Dog restrictions are in operation to the left of the main access for a distance of about 300 yards between April 1st and September 30th. Adjacent to the car park is the small St Tanwg's church, which seems in danger of being engulfed by the dunes. Also nearby is the National Trust Y Maes nature reserve which is home to the rare Sharp Rush - named because its leaves end in a sharp point.