Silbo Gomero - Whistle as an Official Language
What makes La Gomera so unique is Silbo (Silbo Gomero, Spanish silbo - whistle) or the whistled speech used by the islanders. As incredible as it sounds, it’s true. Silbo Gomero belongs to the so-called whistled languages, which most often develop in mountainous areas and other inaccessible terrains. There are more than 70 communities in the world whose members communicate with a whistle. For example, the village of Kusköy in Turkey, then the communities in the Amazon, Oceania, etc.