2000: First British women reach South Pole
Catherine Hartley and Fiona Thornewill become the first British women to walk across Antarctica to the South Pole.
Their nine-person group covered 680 miles while withstanding temperatures as low as -48C.
Fiona Thornewill trekked alongside her husband, Mike, becoming the first married couple to achieve the feat.
Originally broadcast on 4 January 2000.