Depends where. The resort we stayed at wasnt really suitable for toddlers as it was all open to the pool and beach. My youngest is 3 and we kept a very close eye at all times. But im sure there are many places around that are more child safe. Booking.com has many good filters and you could narrow down the search there for your expectations. I definately recommend visiting though! I hope you get a chance to!
Cairns is lots of fun as well, though a different kind of scenery and trip:) Have a great holiday! 🤗😁