On day three, visit the Flagler Museum, also known as Whitehall. This magnificent mansion was built by Henry Flagler, a key figure in the development of Florida's east coast. Explore the opulent rooms, admire the stunning architecture, and learn about the Gilded Age. Afterward, take a stroll through the beautiful gardens surrounding the museum. In the evening, enjoy a sunset cruise along the Intracoastal Waterway.