It's a hat trick. Sarah Outen has reached the south-eastern tip of Mauritius, becoming the first woman to (row alone) across the Indian Ocean, the fastest person to do so and at the age of 24, the youngest.

In a rowing boat she's covered 3100 miles under scorching sun, sometimes riding 30-foot waves in (shark-infested) water.

When she set off she admitted she was slightly (mad):

"People ask that as the first question sometimes.’Are you mad?' And my answer is, 'Well you've got to be a bit of a fruit loop to get through this life I think'. So yes I am and I'm proud of it."

It wasn't just a test of (endurance) and stamina, it was about raising money for arthritis charities.

Sarah's dad, who had rheumatoid arthritis, died three years ago. She went on her (extraordinary adventure) in his memory.