Olympians Sebastian Cuattrin and Sebastian Szubski have provisionally smashed the world record for paddling the 198.5-kilometre stretch of the River Thames from Lechlade, Gloucestershire, to London.
The pair covered the route from St John's Lock to Teddington Lock in 21 hours and 57 minutes, provisionally beating the previous record by more than two hours as they paddled through 22 locks and ran and carried for the other 22.
The record is yet to be officially ratified by Guinness World Records, but the challenge provided the perfect motivation for Cuattrin to keep paddling at the age of 50.
Cuattrin, who is also the International Canoe Federation Global Lead for Flatwater, recalled a couple of funny anecdotes when asked about what keeps him going.
In 2006, the four-time Olympian's doctor suggested that he should stop paddling to preserve his health due to the hernias in his back, a notion unthinkable to the then 32-year-old.
Sixteen years later, despite people suggesting he was too old to continue, Cuattrin took it in the right spirit, and it led to a daring solo paddle.
Read the full story on the International Canoe Federation website.