The BBC have officially announced the return of an old foe to face the Doctor(s) in the 50th Anniversary Special.
Filming has been taking place around Ivy Tower near Neath in South Wales today, though with filming taking place on private land there has been little activity observed by fans. However, comings and goings have been seen, with this tweet by Ryan Farell becoming very popular on the social medium: "I've been waiting for three years to post this tweet: Matt Smith and David Tennant have arrived on set." Earlier, Carwyn Jones had been luckier and reported: "Just seen the TARDIS and set for Doctor Who 50th Anniversary in Ivy Tower, Neath!!!!". Later, Olivia Morgan was thrilled to say: "Just seen David Tennant filming for Doctor Who in Neath". The Ivy Tower location setting was originally spotted by Erin Rickard yesterday, who wondered: "Walked to the Ivy Tower + found this...Asked what they're up to but were very secretive, my bet is Filming! But what?"
Update: you can read a locations reports from Phillipa Collins here, plus some additional photos of the foe on set via Adrian Cole: 1 2 3 4