Over the years I have either been a member, or assisted at the following places for you to go to see the night sky at or with.
The Astronomical Society of WA has been around since the beginning, great buck of amateurs. https://aswa-inc.org.au/
Wonderful organisation that runs beginners telescope classes, astrophotography lessons etc, Carol is a gem. https://stargazersclubwa.com.au
Another great observatory running night tours. I’ve known Richard off and on for many years, quite dark skies and lots of other activities for all ages. https://gravitycentre.com.au/observatory/
The Astronomical Society of Australia is a professional body and may be the future for your children, or grandchildren if they study astronomy in all its forms. https://asa.astronomy.org.au/
This is a great cause to try and save our night sky for our children and grandchildren as well as native animals. Join up and help raise awareness of the damage to humans and the animal kingdom, before it’s too late. https://www.australasiandarkskyalliance.org/
Following on from above, the International organisation provides more information and you opportunity to challenge light pollution outside Australia. https://darksky.org/
Astronomy West 