Start something
What were you going to do anyway? Walking the dog at Howrah at eight. Reading on the boardwalk at lunch. Add "others welcome" and a public spot, and it becomes a notice. It happens whether or not anyone joins you.
First, your mobile
Posting needs a verified Australian mobile so that a real person is accountable for every notice. We send one code, once. Your number is stored encrypted, kept for 90 days after your last notice, and released only on a lawful request. It is never shown to anyone. Details.