If you want the boat to yourself the sole charter rate starts at about $2000 and up to $4000 depending on the boat.
The game fishing grounds around the Bay of Islands can be as close as the outer islands but normally you have to go up to 10 nautical miles off-shore to find the fish. And catching a fish is by no means guaranteed. I know some anglers who have fished for marlin for years and never caught one. Others catch them first try and that's part of the allure of big game fishing.
If you do catch a marlin you have a choice to make. Do you land it or tag and release it? Tag and release means you insert a tag with a number on it into the back of the fish and then record all information about it on a data base. Then if the fish is caught again the data can be compared.
If you choose to land it the fish is brought into Paihia or Russell wharf and weighed and photographed and then taken to the smoker.
If you love fishing, game fishing really takes it up a level. The anticipation as you trawl the ocean, the adrenalin rush when the fish strikes, and the satisfaction of getting it alongside the boat is hard to beat.