Children who want to post their letter to Santa this year have until Friday 8 December to get it sent, if they want a response.
The Royal Mail has revamped its website this year to show kids the journey their letter takes before it reaches Father Christmas.
The annual tradition sees nearly 800,000 letters sent by children in the UK to Royal Mailβs special address: Santa/Father Christmas, Santaβs Grotto, Reindeerland XM4 5HQ.
Kids then receive a response addressed to them from Santa himself.
Parents must remember to include their childβs full name and a return address to guarantee a reply before Christmas day.
βHello boys and girls,β the message from Santa reads on the Royal Mailβs website. βWhat do you want for Christmas? Itβs time to let me know.
βGrab your pen and paper. Post it quickly. Ho ho ho!
βAdd your name and your address (and a sprinkle of Christmas cheer), then post it to the address above and follow its journey here.β
Santaβs team of helpers at Royal Mail have been helping to deliver Santaβs replies to childrenβs Christmas wishes for over 50 years.
In his reply, Santa gives children an update on how his preparations for the big day are going. He advises children to be good, to be asleep and wishes them a very happy Christmas.
So where do all the letters go, we hear parents ask...
All kidsβ letters are delivered to a post office in northern Finland, the Telegraph revealed back in 2013.
βThe main function of this post office is to sort and reply to some of the 550,000 letters that arrive each year,β they wrote.
βBritish children remain committed correspondents; a fifth of all the letters last year came from Britain, second only to Italy.β
Follow the Royal Mailβs Santaβs letter journey here.