Somewhere in one of three Rotorua lakes is a fish that can net someone $10,000 - and "all you have to do is catch it".
Fish and Game officers said they had "done the hard yards" getting ready for the Fish for Gold promotion which put a $10,000 prize up for grabs as the new fishing season got underway on October 1.
Fish and Game officer Mark Sherburn said the 30 green tagged fish at the centre of the promotion were released last Wednesday in bleak, cold and rainy conditions.
"We've made no secret of the fact that the 30 green tag fish have been put, 10 apiece, into lakes Tarawera, Rotoiti and Okataina.
"It was quite an operation that involved transporting fish in our live trout truck and then transferring them to our runabout, into an oxygenated plastic tank, for the trip out into the lake."