Crowley could care less about the oysters, really. But travelling with Aziraphale? Aziraphale doing anything with him, on purpose, for no reason except that the angel wants to? He'd go to the moon for that. To the ends of the universe and back. He'd wait until the end of the world. Again.

"Scotland's closest." Crowley grins. "Could knock that one out of the way before it's winter and the weather goes to pot or midge season really gets started. New Zealand might take some more effort, but we can work our way around to it."