"Nothing wrong with wanting a token to remember the places you've been to. That's why people paint pictures, they write sonnets, they collect shells. They want to remember the world they've seen," the Doctor says.

He shrugs a little. "Me, I always just find myself coming back. See what it's like with my own eyes."

He looks out to the horizon and points. "There's an outlook over there. Can probably get a better view of the sea from it."