The New Scooby and Scrappy-Doo Show (1983)
S1E2 No Sharking Zone
Title: No Sharking Zone Plot: The gang travels to Scareruba Island to meet Prince Ruba and capture images of the thrilling surfing festival, featuring the iconic Cowabunga Carlyle. However, their adventure takes a twist when they discover tales of Scareruba's hidden treasure, guarded by a fearsome great white shark and a mysterious seaweed creature.