Prompt
                                        
                                            "Generate an image of a serene island landscape with turquoise waters and lush green vegetation, representing St. John, U.S. Virgin Islands, an island in the Caribbean Sea. The image should feature a picturesque beach with a few sailboats in the distance, surrounded by hills and a clear blue sky. Include some iconic elements such as palm trees, rocky shores, and a glimpse of the Virgin Islands National Park in the background. The style should be a mix of realism and tropical charm, capturing the island's natural beauty and tranquility."