Santa Claus is coming to town and children around the world are hoping for some surprises in their stockings on Christmas morning.

Have you been naughty or nice? Why not write Santa a letter?

Father Christmas has been spotted out and about in Australian cities, checking in with Australia Post offices and the posties whose mailbags get a lot heavier at this time of year.

Mr Claus urged Australian children to send him their wish lists as soon as possible.

"With only a few weeks to go until Christmas, I'm starting to get particularly busy now," the man in red said.

Letters can be address to Santa, North Pole, 9999.

Don't forget to include your full name as well as a stamped, self-addressed envelope so Santa knows where to send his reply.

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