Could you kindly enlighten me on a matter of availability? I'm curious to know if the herb kava is accessible in Australia. I've heard of its relaxing properties and am interested in trying it out. However, I'm not sure if it's widely available in my country or if there are any specific regulations surrounding its sale and consumption. Could you please shed some light on this matter? Is kava easily obtainable in Australia, and if so, where might I find it? Additionally, are there any health considerations or legal restrictions that I should be aware of before purchasing and consuming kava? Thank you in advance for your assistance.