While Duke was the ambassador, Gidget (Kathy Kohner) was the accidental superstar who lit the fuse for the global boom. Her real-life adventures in 1950s Malibu, turned into a book and movie, introduced surfing to the masses. She portrayed it as a fun, sun-drenched lifestyle, sparking a craze that brought thousands to the beach. Though purists groaned at the crowds, Gidget’s stoke was genuine and infectious, making her the unlikely catalyst that turned a niche Hawaiian sport into a worldwide phenomenon.