In this animated adventure, the Mystery Inc. gang travels to Hawaii for a relaxing vacation, only to find themselves embroiled in a mystery involving a mythical creature known as the Wiki-Tiki. As they delve deeper into the island’s secrets, they must solve the mystery to save a local surfing contest. Directed by Tim Maltby, the film features the voices of Frank Welker, Casey Kasem, and Mindy Cohn. This family-friendly film can be viewed on 123Movies / Movies123 for free.