"Make sure the reindeer have plenty of water - and don't forget to drink a glass every hour too," Santa reminds a team of elves busy making presents for next Christmas as Lapland swelters in a record heatwave.
It's not every day that Father Christmas finds himself briefing his elves about the hazards of sunstroke, but this summer northern Finland has seen temperatures hover around 30C for days on end.
As for Santa, he will be staying indoors most of the day - his bright red costume trimmed with fur is very warm.
"I'm only going out for a swim in the lake in the forest after 18:00, when the weather has started to cool off," he says.
While Santa's workshop in the city of Rovaniemi is adapting with cheerful resilience, the unusually warm temperatures in the Arctic are a serious matter – and scientists are pointing at climate change as the culprit.
