Hi all,

I'll be connecting from an SQ flight at ~6AM to a DL flight at ~9AM in SYD. Having never been to Australia, I wonder if there's any wisdom (or possibility) of "entering" the country, if only for a bit. Is there anything interesting or worthwhile near the airport that I might be able to do at that hour? I'm in C and suspect I'll have access to a lounge (though no idea what lounge DL will use) so I guess I could just shower and hang out there, but there's no adventure in that.

Another related question: should I misconnect for some reason, will I be trapped in the airport for 24 hours or is it possible to get a visa on arrival (US passport)? Or would it be money well spent to order the ETA ahead of time just in case?

TIA!