The embassy isn't inviting Australian citizens to their Australia Day celebrations, you can only go if you are an Argentine businessman. Hence the query.....
Im a resident oz (despite the user name) who would be interested in a get together on such an auspicious occasion.
Probably later in the day is better.
Last year we had an Aussie picnic in Parque Centenario.
That's the usual event for the 26th celebrations.
It's just a simple case of picking a time to meet up & bringing along your own nibbles & drinks to share around. Last time we all met near the lake in the middle of the park, under the trees somewhere.
That picnic was awesome. All the ozzies (around 15?) singing "Waltzing Matilda", and making everyone else try Vegemite for the first time (one pic of each one's faces after the first bite should still remain in the organizer's blog). You should see that!
If I remember correctly, we borrowed a big flag from the embassy to signal the meeting point and to icon the celebration. They also provided other stuff like small guide books.
The good thing with a picnic is that there is total freedom to do anything, people are free to move around and change places to get to talk to everyone, also to bring their own food to share, play games, etc. In my opinion, for example something like a dinner at a restaurant might be too structured to enjoy it 100%.
If I can find the link to the blog with all those pics I'll post it on the thread.