Using a satellite phone, he called officials in New Zealand and Australia both countries claim sovereignty over parts of the Southern Ocean and are staunchly against whaling and requested that a naval vessel take the Japanese ship into custody.

NEWYORKER: Neptune��s Navy

Great white sharks are attracted to the warm ocean currents along Australia's southern coastline and are a constant concern for divers who work in the sea.

CNN: Divers embrace anti-shark device

Getting there by boat also involves a challenging sail across the Southern Ocean, from bases like Hobart, Australia, and isolated Punta Arenas, Chile.

BBC: Experiences that make time stand still