Nah it's not. It's a regular club, people in the 5klm radius need to be members like any club. http://www.rmycph.com.au/wp-content/uploads/sign-in-requirements.pdf . In the radius social membership costs a whopping 27 bucks or I can sign you in.
Alternatively, suggest another venue and that...
Cripes, I am still preparing for the Ebola apocalypse. I haven't got time to prepare for Nuclear Armageddon as well ! (though if anyone can give me an inside line on an XL NBC suit i'd be mightily obliged :p)