Everyone Loves Mel (2000)

Nestled in the picturesque Pacific Northwest, the tale of Swanson Lake is guarded fiercely by one man who isn't ready to let it go. When Bill's grandsons arrive for their summer getaway, they unexpectedly embark on an exciting journey with a massive turtle named Mel. However, trouble brews when Bill's neighbor, Bailey, attempts to capture Mel to showcase him in a planned theme park. Determined to protect their new friend, the grandsons devise a clever plan to keep Mel hidden from their neighbor.