"Dolphin Reef" is a Disneynature documentary film about dolphins and their habitat in the ocean.
The film was first released in France on March 28, 2018 under the title "Blue." It was set to be released in the United States on April 20, 2018, but it was announced that it would be pulled from the theater schedule the week before. The film was then rescheduled to coincide with the launch of Disney+ in the United States, making it the first Disneynature film to be released exclusively on the streaming platform. On March 18, 2020, it was announced that the film will be released on April 3, 2020, alongside ''Diving with Dolphins,'' a feature length documentary about the film's making.