Wonderful World 2021. 3. 5. The Kermadec Islands /kərˈmædɛk/ (Māori: Rangitāhua) are a subtropical island arc in the South Pacific Ocean 800–1,000 km (500–620 mi) northeast of New Zealand's North Island, and a similar distance southwest of Tonga. The islands are part of New Zealand, 33.6 km2 (13.0 sq mi) in total area and uninhabited, except for the permanently manned Raoul Island Station, the n..