Monster High: Great Scarrier Reef

A group of friends is transported from their school pool into an underwater fantasy world known as the Great Scarrier Reef. While exploring this realm of coral and flowers, Lagoona Blue returns to her homeland and must face her personal insecurities. To return home, the girls must overcome their fears, which involves dealing with a creature from the deep and a rival from Lagoona's past. The plot also centers on an aquatic dance competition.

This animated family film was produced in the United States by Mattel, Mattel Entertainment, and Nerd Corps Entertainment. It was directed by William Lau, marking the 15th film in his career and following his 2015 project, Monster High: Haunted. The voice cast features Larissa Gallagher as Lagoona Blue and Kelpie Blue, Kate Higgins as Frankie Stein, Debi Derryberry as Draculaura, and Salli Saffioti as Clawdeen Wolf and Cleo de Nile. Other cast members include America Young as Toralei Stripe and Evan Smith as Gillington Webber and Deuce Gorgon.

The movie has received generally positive feedback from viewers. On TMDB, it holds a rating of 7.7/10 based on 128 votes, while on IMDb, it has a score of 6.2/10 from 942 votes.