Dyffryn Seaside Estate is a large family-run holiday, touring, and camping park situated between Harlech and Barmouth on the Gwynedd coast of North Wales.

Set across 800 acres of level, tree-planted grounds, the estate borders two miles of sandy beach and offers over 200 tent and touring pitches. Caravans and bungalows are also available for hire, including wheelchair-accessible options.

On-site facilities include an amenities block with showers, a laundry room, a well-stocked shop, a takeaway café, and a fully licensed pub. An indoor leisure complex houses a heated swimming pool, sauna, steam room, spa bath, and coffee bar.

A children's playground rounds out the family-focused amenities. The surrounding area offers walking trails including the Welsh Coastal Path and the Ardudwy and Mawddach Trails, with the town of Barmouth roughly five miles away.