Three new marine reserves, covering 435,000 hectares of ocean, have been set up in the subantarctic today.
Conservation Minister Nick Smith said the reserves would be formally established in sea surrounding the Antipodes, Bounty and Campbell Islands from Perseverance Harbour, Campbell Island.
"The New Zealand Subantarctic Islands are one of the most pristine places on earth and these marine reserves are about keeping them that way," he said.
"The marine reserve status that takes effect today means there can be no fishing, no mining, no petroleum exploration and no marine farming in these waters."
The reserves will ensure the protection of an "incredible diversity of wildlife", he said.