A letter to passengers says the company is"terribly sorry"guests will be unable to visit Dunedin and The Sounds.
Fears remain for 10 Australians still missing after the White Island volcano in the Bay of Plenty suddenly erupted on Monday,killing at least six people and injured scores more.
Within an hour of the volcano erupting,Whakatane Hospital was overrun with burns victims. Screams echoed in the corridors and the bodies kept piling in. It was complete bedlam,a hospital staffer said.
Sydney boys Berend and Matthew Hollander are still missing,almost 48 hours after New Zealand's White Island eruption.
With many unable to speak,NZ authorities are looking at clothing,scars and jewellery in a bid to identify the victims.
Adventure tourism is inherently risky. That is part of the attraction.
A shipping container installed on White Island three years ago as a shelter does not appear to have been used by tourists fleeing the deadly eruption on Monday,raising serious questions about the island's emergency management plan.
At least three Australians are believed to be among the five confirmed dead. And at least 10 Australians were missing on Tuesday night,including the Sydney family of four.
New Zealand police have launched an investigation into the tragedy on White Island that has claimed the lives of six people and put 31 people in hospital.
Jason Griffiths,33,who was injured and"badly burnt"in the volcano explosion on White Island is undergoing treatment in hospital.
New Zealand Prime Minister Jacinda Ardern said on Tuesday morning that five people died in the eruption,eight people were still missing,and 31 people were in hospital.