Helsinki's average temperature was a frosty 1 degree Celsius in November 2016.
Somebody there decided to congratulate any tourists who had been brave enough to make the journey to the snowy city.
The Finnish capital has a reputation for cold weather, so why not sell it as an endurance test?
In a post on Reddit on Monday evening, one user shared this image of a welcome sign which they said was hanging outside Helsinki airport.
Visit Finland confirmed to indy100 that the banner was real, hanging towards the centre of the city.
It was created by the Slush tech conference, which was held in Helsinki last week.
Marianne Vikkula, CEO at Slush told indy100:
With only few hours of sunlight during November, and lots of muddy slush on the ground, Helsinki in November is weather-wise probably the worst possible place you can imagine. It's dark, wet and cold. It is quite difficult to promote our otherwise lovely capital. You might have seen photos of beautiful snowbanks – well, you don't usually find them in Helsinki (they're in Lapland). We at Slush have always been about originality and honesty, so we try to take the best out of the sh**y weather.
The conference attendees haven't been the only ones to brave the chilly city.
Renowned for its cold weather, Helsinki boasted 3.5 million overnight stays by tourists in 2015.
Most recent figures from Visit Helsinki showed 308,000 stayed overnight in the city in September alone.
And we can see why. It looks incredible.