Hey Strangers ... Ooops, I'm the stranger now aren't I !!!!!!

We're heading upto Teewah Beach on the 12th January for 10 hopefully lovely days of camping. This will be Seamus' first real camping trip and just wanted to ask a question about the sand.

Taking the trailer up and being that Seamus is an automatic do I opt for High or Low range & do I leave him drive?? More concerned with getting on & off the beach because we will be pretty loaded up and i've only ever driven a manual on sand (and even then only a couple of times)

ALL the kids are coming so don't want to get stuck before we even get there