Sunbathing is not an essential reason to be outside you are committing an offence

An Australian Police Officer: "Sunbathing is not an essential reason to be outside. I'm requesting your identity because I suspect you're committing an offence. We are acting on the public health order act. You need to be outside for an essential reason."

Source: Common Law v Cops law
https://youtube.com/watch?v=-G39g_xUIeA