Foreign Minister Murray McCully has taken Shane Jones, David Shearer and Winston Peters with him for his trip to the Cook Islands, where he is holding talks on dwindling island populations and renewable energy.
The delegation's three-day visit, which kicked off yesterday, will reach some of the country's most far-flung atolls, 1300km north of the capital of Rarotonga.
Mr McCully's office said New Zealand First leader Winston Peters and Labour's foreign affairs spokesman, David Shearer, were on the trip because the minister wanted cross-party support for New Zealand's work in the Pacific.
Mr Peters also had a strong interest in the Cook Islands when he was Foreign Minister.