香港居民可以在澳洲逗留多久

如果沒有申請有效簽證, 香港居民是不可以進入澳洲國境, 停留一天都不可以.
持有特區護照的香港人可以申請電子簽證 (BNO 持有人不可於網上自行申請, 需委託旅行社代辦). 一般申請成功後. 申請人會獲發一年期的多次入境簽證. 每次入境停留時間不可超過 3 個月

you can apply a 1-year tourist vis

and you can stay for 3 months each time you travel to australia

you can apply on net and its abt AU$20
if you apply it via any hong kong tourist agency (e.g. HKST), it costs u abt HK$100

**prices are more or less the same

enjoy ur trip

3 months, and you have to apply a tourist visa ( about $20 AUD)