Beaumaris is a handsome little town on the eastern shore of Anglesey, facing the Menai Strait and the mountains of Snowdonia beyond. Its crowning glory is Beaumaris Castle, the last and largest of the castles built by Edward I of England to subdue Wales in the late thirteenth century. Though never completed, it is considered the most technically perfect example of concentric castle design in Britain and is a UNESCO World Heritage Site.
The town itself is a pleasant base for exploring the island, with a Georgian main street, the Victorian pier, and a small harbour. The old courthouse and gaol are worth a look, and the Menai Strait provides sheltered waters for sailing and sea kayaking. Just out of town, Penmon Priory and a cruise to Puffin Island round out a couple of days.