The new Radio Times magazine features a cover for The Waters of Mars and will preview the special.

Press Release
Be afraid. Be very afraid. This week we take a look at new Doctor Who special The Waters of Mars (Sunday, BBC1/BBC HD), which may be the scariest adventure that the intrepid Time Lord’s ever had, and find out from Russell T Davies just why he’s ladled on the fear…

With its terrifying army of zombified creatures sporting cracked veins
and white pupils, The Waters of Mars, the first of David Tennant's final
three episodes, might also be his scariest yet.

Out tomorrow, priced £1.

Update

 
The new TV Guide magazine includes coverage on the special.