Sorry, but my kids are too young for the HS right now, so not sure but from people around here have been told that Corinda SHS is a highly regarded school, and I must admit, looks very impressive. I am not sure about the ESL offering, but do know that they have international students attend when they ask families if they can have them as homestay pupils. They are mainly from Asia, I think. As Tina said, try emailing and the calling them when they are back. This is from the website:
Our international Student Program has several officers to assist students and parents.
Guidance and Counselling
The School Guidance Officer plays an integral role in supporting International Students. This officer overseas the educational and personal welfare of the students. On arrival the Guidance Officer takes time to plan the curriculum program with the student and assist them in becoming acquainted with the school and Australian life.
English as a Second Language (ESL)
The ESL teacher is dedicated to working with international students along with subject teachers and support staff to help students with their English skills and their transition with study programs.