To draw your attention to a couple of publications that are out there re GPS marks:
500 Hot Fishing Spots & GPS Coordinates Cairns to Byron Bay.I've had this book for quite a few years and has plenty of marks for inside the bay and beyond.You would do yourself a favour to hunt one of these books down.I see the Mods have been busy.Jim
Wouldn't be a Couple if there were not two now would it; 250 GPS Coordinates Tweed Heads to Gladstone & Beyond.....It says here "Putting You on the Big Fish"....... There you go.....