During today's ceremony, historian Ian Acton read a dedication to Captain Scott and four other members of the Antarctic expedition who died on the trek.
One of the men was Gower-born Edgar Evans.
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Staying mostly dry overnight with generally light winds, but cloud and wind will gradually increase from the northwest from the early hours.
In the last programme we've been to meet two Welsh entrepreneurs who chose a different route and we visit the Energy Centre at Coleg Menai.
ITV news presenter Jonathan Hill reflects on this week's Wales at Six special series on Welsh education.