Geology and Geography
The island is of geological interest with pillow lava, jasper formations and aeolian sand deposits.
The island forms part of the National Nature Reserve of Newborough Warren which includes the extensive and floristically rich sand dune system.
Llanddwyn Island is a tidal island; it remains attached to the mainland at all but the highest tides. It provides views of Snowdonia and the Llŷn Peninsula.
Read more about this topic: Ynys Llanddwyn
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