In Bonaire, Sint Eustatius, and Saba, an old local custom — sometimes described as a regulation — discouraged whistling outdoors after sunset. This tradition reportedly stems from the island's deep maritime culture where whistling at night was believed to confuse or anger the spirits of sailors lost at sea, as well as potentially mislead fishermen returning to shore. Local lore suggests that islanders observed many superstitions linked to the sea and night-time activities, embedding these rules in daily life as cautionary habits. Although this custom is rarely enforced or referenced in modern times, some elders still recall family stories and local warnings about whistling after dark. It is difficult to confirm if this was ever a formal law or an informal societal expectation, but it survived in oral tradition long enough to be remembered today. The rule represents a fascinating example of how small island communities shaped social norms based on their environment and history, blending respect for nature with maritime caution. Visitors today might find such customs quaint reminders of a time when folklore and practical survival entwined, though whistling is generally unrestricted now.
Source / verification note
Based on regional oral histories and maritime folklore documented by cultural historians of the Dutch Caribbean islands.