It seems like if there's anywhere to be Watch Project Power Onlinein the world, it'd be in New Zealand.

These holidays, New Zealanders are set to again participate in a nationwide Secret Santa, organised by the country's postal service, NZ Post.

For those unfamiliar with the concept, Secret Santa, sometimes called Kris Kringle, is an activity where one person gives a (usually small) gift to another person, but the recipient is not told who it came from. It requires a group of people, and names are drawn at random.

New Zealand's nationwide Secret Santa has been going since 2010, but NZ Post took the reins in 2013. It now has a warehouse to facilitate gift exchanges, and there are more than 3,500 Secret Santa participants this year — you just need a Twitter account to enter, and a Twitter handle is the only clue you'll receive for your recipient, for gift ideas.

Even the country's new Prime Minister, Jacinda Ardern, is getting involved.

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It's likely the most difficult person you could end up buying for.

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Part of the fun of Secret Santa is the sleuthing of your giftee, but it can be pretty hard when you're gifting a complete stranger on the other side of the country.

NZ Post have a little questionnaire on its Twitter page to help.

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But of course, there's always the magic of the internet to find out what your giftee is like.

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Happy gifting, Kiwis.