holiday in three different places in qld with 3 kids camping haha

Hey mum's and Dads and all In between

I was wondering if people in QLD can help me out a little please ...

Ok so my family and I are going to
Be staying at Nobbies Beach for a week ( in a camping trailer for school holidays ) what's the best place to go eat-- entertainment--- shopping 4 wheel driving ect ect

We are also staying at Harvey bay for 7 nights same question eat --- entertainment---- we will be going to Frasier island too

And one more place Caloundra ...... Again same questions

I have a 5.5 year old a 4.5 year old and a 2.5 year old

Please help our family have the best time away for 18 nights. We are from a small country town of Forbes nsw so anything is a step up for us ?? Thanks guys