Ynyslas is a small Welsh village about 1.5 miles north of Borth and 8 miles north of Aberystwyth in the county of Ceredigion. It is sandwiched between a long sandy beach in Cardigan Bay and the beach in the Dyfi Estuary. The area between the sea and the estuary beach is made up of the Ynyslas Sand Dunes which are part of the Dyfi National Nature Reserve and home to many rare plants and animals. The sands of the estuary beach can be driven onto and parked upon. The nature reserve has a visitor centre with toilets and a small shop. At the start of some BBC 1 programmes it shows people flying kites on sand dunes and this was filmed at Ynyslas.