In July Jim McCarron and his son Patrick from Monaghan set off on an challenge to climb every highest point in the 32 counties in Ireland.
But, all for very good reason... They lost their wife and mother Ellie to cancer about 2 years ago and wanted to raise money for the two charities that helped them and her so much during her illness.
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They have already gotten to the top of most of these mountains with only two left, including Ireland's tallest mountain Carrauntoohill.
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Our reporter Sheila Naughton has been speaking to Jim about their fundraiser, and she began by asking him about the charities it was in aid of: