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Adrian and Mehreen arrive on Anglesey – the largest island in the Irish Sea - via the Menai Strait, a stretch of water so tempestuous that Lord Nelson said ‘if you can sail here, you can sail anywhere’.

Mehreen tells the story of the Menai Strait’s magnificent bridges and how – with record levels of traffic crossing from mainland Wales - they could be about to be joined by a third, with an extraordinary design that is literally ‘gigantic’. Meanwhile, Adrian dons a wet suit to meet a local paddle-boarding legend, to find out how she is playing a key role in helping Anglesey become the first plastic free county in the UK.

Other highlights include wildlife expert Patrick Aryee getting up close to the wild ponies of Newborough Warren, local comedian Tudur Owen fulfils a boyhood dream by joining the Holyhead truckers at their brand new truck stop, and weather presenter Lucy Martin explores the Anglesey ship wreck that changed how we forecast the weather forever.

Finally, Adrian and Mehreen visit the family whose factory pays the queen for the right to pump sea water from the Menai Strait so they can extract mineral rich sea salt from it.