A 12 mile run, peppered with physically exhausting challenges and combined with a lot of mud. Taking on the Tough Mudder challenge is not something to do be done lightly.
Worldwide a million have done it - but not many in a wheelchair. But this weekend, one challenger who did manage to cross the finish line was Paralympian Anne Wafula-Strike.
She spoke to Nina Hossain.
Take a look at the kind of thing Anne Wafula Strike will be facing when she attempts the Tough Mudder challenge next month. Obstacles on the extreme 10 mile course include ice baths, fire, wire cages and 10,000 volt electricity.
Anne is aiming to be the first person in Europe to complete the course in a wheelchair, in order to raise money for AbleChildAfrica and her own charity the Olympia Wafula Foundation.
British Paralympic wheelchair racer, based in Harlow
Born in Mihuu, Kenya, and moved to the UK in 2004
Anne contracted polio at the age of two and was later diagnosed with below T7 paralysis
She began wheelchair racing in 2002
In 2004 she became the first Kenyan wheelchair racer to represent her country, competing in the T53 400m finals at the Athens Paralympics
Gained British citizenship in 2006 and became a member of Team GB
Her disability has been reclassified and she now competes in the T54 racing category
- In 2007 she was officially recognised by the Queen at a Buckingham Palace reception for her work as a disabled athlete and for involvement in charity work for people with disabilities
- She narrowly missed a place in the London 2012 Paralympics, but was a torchbearer, carrying the Olympic flame past London Zoo
In one month, Paralympic wheelchair racer Anne Wafula Strike will become the first person in Europe ever to attempt the 'Tough Mudder' challenge in a wheelchair.
Tough Mudder events are hardcore 10-12 mile obstacle courses designed by the Special Forces. The obstacles include such feats as crossing through burning firewood, ice baths, and dangling 10,000 volt electric wires.
Anne wants to complete the challenge to raise money for her own charity, the Olympia Wafula Foundation, and also AbleChildAfrica, which aims to promote the realisation of equal rights for disabled children and their families in Africa.