A Cardinal Newman Catholic school teacher is flying to Switzerland in July to take part in the Ironman Triathlon for charity.
Clare Murphy, 35, of Lewsey Farm, is taking part in the 2.4 mile swim, 112 mile bike lap and 26.6 mile marathon, for two charities.
She will be raising money for Keech Hospice Care and Teenage Cancer Trust.
The PE teacher said: “Both charities do a lot of good things for people, so it’s great to try and raise as much money as possible for them.”
The event is in Zurich on Sunday, July 27, and could take up to 15 hours.
She trains between 8 and 20 hours a week and is varying it between the activities, with different distances each time.
Ms Murphy said: “Training is going really well, I’m taking part in local events to get some extra practice in.
“It is going to be really tough, I haven’t set a time because I don’t know what it will be like, I just want to complete it, do my best and raise as much money as I can.”
The event costs £500 to enter but she has paid that herself, she said: “I want all the money I raise from donations to go to the charities.”
To donate to either of the charities, visit www.justgiving.com/user/43274992.