A manta ray glides through water as though it owns the ocean, then you remember the uncomfortable truth: many shark and ray species are sliding towards extinction, and we still do not have enough data to protect them properly. From Ishigaki in Okinawa, join adventurer Phoebe Smith as she becomes one of the first people in the world to complete the PADI (Professional Association of Dive Instructors) Shark and Ray Conservation speciality and uploads her sightings to the Global Shark and R...