Hi Jax
It depends on where you stay. If you go during the European summer then you might expect a few European kids.
However, you have to watch the Australian school holidays otherwise you will be inundated with kids at certain hotels . Dynasty in Tuban is a BIG family hotel. Here is a website of Aussie school terms.
Australian School Holidays
Shame you're not going 23rd May/June ... we could have met up
Cheers Geri