77-year-old Trevor Elias, from Abertridwr, hasn't been seen since he went missing last week.
More than 300 villagers held a candlelit vigil in Caerphilly for the missing pensioner yesterday.
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The owners of what some people claim to be the 'Welsh Holy Grail' are offering a cash reward for the ancient artefact's safe return.
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.