Anglers from all around the world have been fishing shoulder to shoulder and enjoying a "carnival atmosphere" at Rotorua stream mouths recently.
Fish & Game officer Mark Sherburn said that Lake Rotorua had reached surface temperatures in the mid 20's and the cool water inflows provided better conditions for the fish.
"Some fast and furious action is had at the right time by anglers prepared to put in the time and effort," he said.
"Anglers from all around the world are fishing shoulder to shoulder at stream mouths such as Hamurana and Awahou, making an almost carnival atmosphere at times."
Mainly rainbow trout are being caught along with brown trout, and some are in quite good condition.
Mr Sherburn said Fish & Game staff were closely monitoring the fishing with frequent visits, and as well as talking to anglers, giving advice and information. At the same time, anglers were being checked for fishing licences and compliance with regulations.
"To date, around six people have been found without licences, and these cases are being followed up by Fish & Game and court prosecutions may result," said Mr Sherburn.
He said that anglers are reminded to make sure they have a current trout fishing licence if they're heading out to join the fun, but remember the Awahou Stream and mouth and 200 m into the lake is a fly fishing only area.