Taking place in the heart of historic Chester, the best-preserved Roman city in the UK, this unique triathlon begins with a swim in the River Dee before the bike course takes riders out to the Welsh countryside, finally returning for the run in the ancient city centre. BBC Newsreader Louise Minchin is one athlete taking part in this popular event that also sees tough competition for qualifying places at the 2015 ITU World Triathlon Grand Final in Chicago.