as for the whitsundays accom is no problem and if people want to go there I can find out all info but there are many cara parks with huts rooms camp sites, also camping can be done on an island. the area gives the options of many types of fishing islands(with fish) 15nm or so to whitehaven beach, prosy river(jacks barra etc) and faust big barra.
As you have said snelly not many mother-in-laws but there are trout.
also the lagoons and backpackers