You're really hung up on this
, aren't you? It's cool that you want to make it a special moment and all, but if your girlfriend accepts, it's going to be a special moment no matter where you are.
Also, please, for everyone's sake-- if you think your girlfriend is into it and you're REALLY CERTAIN she's going to say yes, you can do something public. If not, find somewhere to have a private moment with her.
"And we are all told from the moment we open our eyes, that everyone is entitled to his or her opinion. Well, thatís horsepuckey, of course. We are not entitled to our opinions; we are entitled to our informed opinions. Without research, without background, without understanding, itís nothing. Itís just bibble-babble. Itís like a fart in a wind tunnel, folks." --Harlan Ellison