Porthdinllaen is a crescent shaped sandy beach over a mile long, and was once considered as the rail terminus and departure point for Ireland. At the western end of the beach is the Ty Coch inn - a very popular public house with outdoor seating, situated almost on the beach. A National Trust car park is located at Morfa Nefyn on the clifftop roughly at the centre of the beach, but roadside parking can easily be found in the village.
The beach is backed by cliffs of sand and boulder clay - sand martins can often be seen nesting high up in the cliffs. Facilities include toilets and a cafe (opposite the car park). This is a good beach for kayaking, sunbathing and swimming but there are strong currents at the northern end. Lovers of secret beaches will find a small sandy cove near to the RNLI Lifeboat station.
This beach occasionally gets good surf, and is best just after the high tide. Dogs are allowed at all times.
The photos were taken at high tide.