We (my parents and I, all adults) are flying into Cairns around the 30th June, will hire a car and wander up to Port Douglas. My question is, do you think we should book accommodation now or will there be plenty of options available as we go? Are there any activities happening around that time that can cause hotels to be booked out? We are hoping to stay for about 10 days. And are the beaches swimsafe? In regards to stingies & crocs?