"Hopefully it will increase some traffic to Rotorua . . . they [tourists] might stay another night," said Mr Hammond.
Mr Hammond said Sulphur Bay was fascinating, with its milky waters and barren yet beautiful landscape.
Despite the lack of oxygen in the water and lack of food, it was home to 65 species of birds, he said.
"Older gulls that have nested there for years have lost webbing in their feet from the acid ... rotting away. Yet they still live here."
Mr Hammond has been working with the Department of Conservation and Environment Bay of Plenty on the new venture. He is excited about the new cruises, joking that on a dummy run this week even he was fascinated by his own tour commentary.
The course into the bay had been carefully plotted using GPS and no wildlife would be disturbed, he said.