DOCTOR: How's Stormcage?

RIVER: I'm on the first night of twelve thousand consecutive life sentences, kind of early to say.

RIVER: Where are we going?

DOCTOR: Calderon Beta. Boring, planet of the chip shops, but there is a four-hundred-foot tree growing out of a clifftop on the north side of a mountain in the middle of the sea and if you take the lift to the top and look up at exactly twelve minutes past midnight on the 21 September 2360 you can see more stars in one sky than at any other moment in the history of the universe. It’s like daylight, only magic.