A beautiful example of the Anglesey fens, nestling in a shallow valley below limestone escarpments of calcareous grassland capped with acid heathland. The site is largely owned by the North Wales Wildlife Trust and run as a National Nature Reserve. Here are large stands of great fen sedge, with fringing areas of flushed mire with a rich flora and fauna, including rare stoneworts, butterwort, medicinal leeches, green-wingedd orchid, pale heath violet and a good population of adders! Access is best from the eastern end past "Arfryn" and onto the (slightly submerged) boardwalk across the fen. Appropriate footwear is required.
Potentially Damaging Operations list
Ramsar Convention on Wetlands of International Importance