Continuity mistake: At the beginning of the movie with the scene of the water skiers, the amount of boats on the water goes from hardly any, to suddenly being loads. (00:02:35 - 00:03:40)

Jaws 3-D (1983)
41 mistakes
Directed by: Joe Alves
Starring: Dennis Quaid, Louis Gossett Jr., Lea Thompson, Bess Armstrong, Simon MacCorkindale
Charlene Tutt: He don't sleep in; he don't live in. You tell Shelby Overman for me he can take a flyin' leap in a rollin' doughnut on a gravel driveway, you hear?
Trivia: At some of the theaters showing this film, when the shark explodes, the "guts" are actually E.T. dolls that were being sold.
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Answer: The lagoon was part of the theme park. Artificial with specific mammals inhabitants inside, warm and friendly.