Ynyslas Sand Dunes
Ynyslas Sand Dunes form the northern section of the Dyfi National Nature Reserve on the west coast of Wales, a dynamic coastal landscape of international ecological importance where sand dunes, beach, estuary and wet heath create a mosaic of habitats supporting an exceptional diversity of plant and animal species. The reserve lies at the mouth of the Dyfi Estuary near Aberystwyth in Ceredigion and is managed by Natural Resources Wales as one of Wales's most significant coastal nature reserves. The dune system at Ynyslas is a particularly well-developed example of the natural succession from mobile sand through to mature dune grassland and heath, a sequence of plant communities that can be traced by walking inland from the beach. The youngest and most mobile dunes at the shore are held together by marram grass, whose deep roots and flexible stems allow it to bind and stabilise shifting sand. Moving inland, the dunes become progressively more stable and support increasingly diverse plant communities, from dune meadows rich in wildflowers to the older dune slacks, the damp depressions between dune ridges, which are among the most botanically rich habitats in Wales. The dune slacks in particular are nationally important for their rare plant communities. The creeping willow dune slack communities found here support fen orchids, early marsh orchids and a range of sedges, rushes and moisture-loving plants that have been lost from most lowland Wales habitats through drainage and agricultural improvement. The presence of these rare communities has contributed to Ynyslas's designation as a Special Area of Conservation under European conservation legislation. The beach at the seaward edge of the dunes is long, clean and generally uncrowded compared to the more developed beaches to the south, and the views across the Dyfi Estuary to the mountains of southern Snowdonia behind are exceptional on clear days. A boardwalk trail allows visitors to explore the most ecologically sensitive sections of the dunes without causing damage to the vegetation, and the visitor centre near the car park provides information about the reserve's habitats and wildlife. Ynyslas is also an excellent location for observing the estuary birds that use the Dyfi as a high-tide roost and feeding ground, including large flocks of waders and wildfowl during the winter months.