- Year: 2017
- Genres: Documentary
- Duration: 1h 33min
- IMDb Rating: 8.1 based on 4,508 votes
- Awards: 7 wins & 17 nominations.
- Director: Jeff Orlowski
- Actors: Andrew Ackerman, Pim Bongaerts, Neal Cantin
- Plot: Coral reefs around the world are vanishing at an unprecedented rate. A team of divers, photographers and scientists set out on a thrilling ocean adventure to discover why and to reveal the underwater mystery to the world.
- Personal rating: 0.0
- Personal description: