Overview: Ishigaki Island-surrounded by beautiful coral reefs-is considered one of the world's best diving spots. In 2007, though, its corals were damaged to the brink of extinction due to the rise of sea temperatures caused by global warming. This became a turning point for the locals to reassess their traditional half-farming and half-fishing lifestyle, which is closely linked to the sea. Many people became involved in conserving the coral reefs. On Journeys in Japan, our camera plunges into the waters off Ishigaki and gets up close to one of the world's largest coral colonies and marine life, including courting manta rays. We also explore the lifestyle of the islanders who coexist with the ocean. Our reporter is British diver Bonnie Waycott, a resident of Japan for ten years. Bonnie works in broadcast media, and also writes for diving magazines. She gets to report from the field and from underwater!