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.

At the start of some BBC1 programmes, it shows people flying kites on the sand dunes, this was filmed at Ynyslas.

The northern end of the Ceredigion Coast Path extends to the Dyfi Estuary National Nature Reserve at Ynyslas.

At low tide the remains of an ancient submerged forest with stumps of petrified oak, pine, birch, willow and hazel are exposed on the beach.

Borth Rowing Club stores its boat at, and launches from the Ynyslas Boatyard on the banks of the Afon Leri.