[If only the kid knew. Gabriel figures a beach is nicer than nothing. It's not like all angels are powerful enough - or bored enough - to go black hole hopping. They don't remember what it's like for nothing to exist.]

I can't tell you. [Whether it's literally because he can't - as if he doesn't know - or because he doesn't want to, there's no indication either way.]

Looks like you don't learn easy, Castiel. You should've known going up against Lucifer was going to get your ass blown up.