Gronant Dunes is a large area of dog-friendly sand dunes and foreshore located between Prestatyn and Gronant. The beach forms part of an extensive dune system that stretches eastwards to the Talacre Beach (Point of Ayr) and to the west it links up with Barkby Beach.

Gronant Dunes also known as The Warren, is a protected site and deemed a Site of Special Scientific Interest (SSSI) and the only surviving largely unmodified dunes along the North Wales coastline.

Facilities include parking, toilets, and a campsite.