Connections and WiFi

Most hotels and other accommodation will have wifi of varying speeds and reliability. 

You may also find free wifi in some retail premises. However,this is often slow and not always secure, so use at own risk.

It is probably worthwhile getting a virtual sim for data and using Messenger or Whatsapp to communicate.

Some social media and messaging services that are popular overseas are not used as much in Australia, eg Signal.

If you have Facebook Messenger and Whatsapp you will probably be OK..