Design a futuristic floating community among Halong Bay in Vietnam that gracefully adapts to rising sea levels. The architecture blends sleek modern forms with organic curves, featuring interconnected floating platforms surrounded by water. Incorporate sustainable materials like bamboo, glass, and recycled composites to create living spaces, gardens, and recreational areas. Highlight renewable energy sources such as solar panels and wind turbines seamlessly integrated into the design. Include unique features like underwater observation rooms, rooftop greenery, and open-air terraces. Render the scene in ultra-realistic detail, showcasing the reflection of the structures on the calm water under a warm, golden sunset, with people enjoying the serene environment. Draw boats around, like a market