Three British women, one of whom has incurable cancer, have shattered the world record for rowing across the Atlantic. Kat Cordiner, who has secondary ovarian cancer, and teammates Abby Johnston and Charlotte Irving, arrived in Antigua on Sunday evening. The women completed the 3,000-mile crossing from La Gomera in the Canary Islands to English Harbour in 42 days ... knocking an astonishing seven days off the female trio record in the Talisker Whisky Atlantic Challenge. Rowing the world's second largest ocean is acknowledged as the ultimate endurance race. More people have summitted Mount Everest than have successfully rowed the Atlantic and fewer than 20% of ocean rowers are women. It is thought Ms Cordiner is the first person to tackle this challenge as a cancer patient. The women are raising money for Cancer Research UK, Macmillan Cancer Support and The Royal Marsden Cancer Charity. Race organisers said they had shown the impossible was possible. Ms Cordiner, 42, Ms Irving, 31, and Ms Johnston, 32, were on a 25ft boat called Dolly Parton " rowing two hours on and two hours off. During their epic trip they experienced scorching heat, enormous night-time waves, sleep deprivation, blisters and callouses on their hands, and sharks trailing their small boat. Ms Cordiner said: "The doctors have told me I don't have decades, I have years, so I really want to make the most of them. I don't want to muck around doing stuff that doesn't matter " I want to do things that are challenging and fun."