The historic Lakeland Queen will soon be venturing into brand new waters.
From October the paddleboat will offer breakfast and lunch geothermal cruises into the "mystical waters of Sulphur Bay", said managing director Terry Hammond.
Mr Hammond said no other tour vessels went into the bay, which was amazing and needed to be shared.
"There's so much in that area going on," he said. "It's an absolute classic to share with our visitors."
He said the new cruise route, which took in Hinemoa Point - "you can see how far she swam", Mokoia Island and Ohinemutu, was being promoted to the independent traveller and group markets. Travel agents in China had also been promoting the concept.