Charles Defoort is the only postman in mainland France to make his deliveries by boat.
The 24-year-old goes door-to-door in a small wooden motor boat in the Audomarois marshes, a wetland region around 45 minutes drive from Dunkirk in northern France.
"We have a map showing where each person lives. So we don't work with addresses, only names," said Defoort, who has been in the job for a year and delivers to some 50 inhabitants.
The marshes, renowned for their cauliflowers, are one of a small number of cultivated wetlands in France. Tourists flock to the UNESCO-recognised biosphere reserve in the summer months, but winter can be bleak and the community isolated.
"In the winter there are no tourists, there's no-one, so we're happy to see the postman," said local resident Alexandra Dumoulin.


Robot Olympics ends with humanoid's 8.64-second 100m
New NASA telescope to probe dark energy, dark matter and exoplanets
Invincible trotter Varenne, Italy's most famous horse, dies at 31
Count Binface becomes Britain's most successful comedy candidate
India's badminton world championships organisers hire monkey whisperers
