Doctor Who 2013 Christmas Special Filming: Puzzlewood

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"They're filming at Puzzlewood soon."

Puzzlewood:

Look familiar to anyone?

Yes, this location was used back in 2009, ironically on the first episodes Matt Smith filmed. How fitting that it will feature in his last episode.

But what are they using the forests for? Trenzalore? The Gamma Forests? Your guess is as good as mine