Came up on my FB feed. It was free last year but this year it is $5 per person and kids under 3 is free.

Two sessions available:

Session 1- 7am - 9am - https://www.eventbrite.com.au/e/wake-up-with-the-wildlife-se...

Session 2- 10am - Noon https://www.eventbrite.com.au/e/wake-up-with-the-wildlife-session-2-tickets-86882087663 - SOLD OUT

Credits to @GG57 for below:

The usual admission prices are:

Adult $34.00

Child $19.00 (3-15years)

Concession $29.00

And that "Once you enter the park during your purchased session time, Featherdale welcomes to stay at the park up until close at 5pm".