Internships and Summer Programs in Australia

I have heard of many prestigious internships and summer programs available in America. I was wondering if anyone knew any start ups or existing companies that have internships for HIGH SCHOOL students in Australia. I have been trying to look for some but have found this very difficult.

Also does anyone know of good summer programs in Australia

Thank you:)

Also, I have tried to find research opportunities in Sydney but I have failed. I’m planning on contacting universities to see if I could shadow a researcher. Has anyone done this before and what was your experience like?