Dozens of hardy swimmers took a very cold Christmas dip in Prague's Vlata river on Saturday.
It was the 74th edition of the event which commemorates the life of Alfred Nikodém, who was a goldsmith and a promoter of the Spartan lifestyle.
In 1923 Nikodem and six other enthusiasts plunged into the freezing cold Vltava River as a stunned crowd looked on which sparked an annual tradition.
"The tough part was the Covid test which is a pain, but the water is pleasant, it's nice and biting as it should be at Christmas," Vladimir Chmela said afterwards.
The swim took place under tight anti-virus measures, with swimmers getting tested for Covid-19 and having to wear masks when not swimming.
The Czech Republic, which has a population of 10.7 million, will go into a partial lockdown on Sunday.