lively scene at what appears to be a beachside gathering in Vietnam

lively scene at what appears to be a beachside gathering in Vietnam. It's dusk, and the sky is a deepening purple. A crowd of people, dressed in a mix of casual and athletic wear, are spread across a red-brick plaza. Some appear to be exercising or dancing, drawn by a sound system set up near a VNPAY advertisement, suggesting a sponsored event. A few palm trees dot the background, giving a tropical feel, and mountains are visible across the water. In the foreground, two motorbikes are parked, their mirrors reflecting the scene. Several people walk by in the foreground.