Dozens of staff from New Zealand's Department of Conservation, MetService and GNS Science agencies are conducting work in the Kermadecs.

The navy's HMNZS Canterbury has been transporting staff and materials to Raoul and other islands in this group in New Zealand's far north for multi-agency scientific work.

DOC has a permanent presence on the otherwise uninhabited island.

Paul Rennie, who has been DOC's senior ranger for Raoul over the past six years, spoke to Johnny Blades