London - U.S. endurance swimmer Sarah Thomas has become the first person to swim across the English Channel four times without stopping, refuelling only on a liquid formula during her 54-hour feat.
The 37-year-old woman from Colorado performed her record-breaking swim a year after receiving treatment for breast cancer, and dedicated her achievement to fellow cancer survivors.
She came ashore on a beach near Dover, on the south coast of England, on Tuesday morning, exhausted and with a sore throat from all the salt water.
"I was throwing up, I was sick," she said, huddled in a towel.
"I was really just pretty numb," she told the BBC soon afterwards in a croaky voice.