A small nature reserve of coastal heath and grassland around a rocky cove at Trearddur Bay, on Holy Island's west coast. In late spring and early summer it is full of wild flowers, and it is grazed by a few ponies. It makes an easy stop on the coast path between Trearddur and South Stack.
Porth Diana Nature Reserve
Small coastal heath at Trearddur Bay with spring orchids and a herd of grazing ponies
Most visitors miss this
Made up of grass and heathland, it's a habitat for unusual species of plants like spotted orchids, yellow flag iris and pink ragged robin (as well as a small herd of grazing coastal ponies).