Greetings.
I’m a freelance English>Spanish translator. I’ve done free, volunteer services -text translation & style proofreading, webpage translation, video subtitle translation & style proofreading, amongst others- for several non-profit orgs.
I’m also collecting reference letters around the world. Are there any non-profit orgs in Australia (or in the region) needing volunteer translations you know of?
Thanks in advance. God bless you.
I forgot telling: I’m not in Australia. I have always translated from my home, so I volunteer by Internet. I’ve tried searching Google and others but given the few results I’ve got I think asking people can be more effective.

Go to Google and type in
Volunteer Australia
Volunteer <<name of city where you are>>

You will get a list of databases that list volunteering opportunities at a variety of organizations in your area. If you don’t see any requests for Spanish speakers, look for organizations that you think *might* need such, and give them a call and offer your services.