On your second day, venture to the famous Costa Smeralda, known for its crystal-clear turquoise waters and luxurious resorts. Start your day by visiting Porto Cervo, the main town of the area, and explore its glamorous marina filled with yachts. Take a stroll along the promenade and browse the high-end boutiques. Afterward, head to one of the stunning beaches in the area, such as Spiaggia del Principe or Capriccioli Beach, and spend the day sunbathing and swimming in the pristine waters. In the evening, enjoy a romantic dinner at one of the waterfront restaurants, savoring fresh seafood and local specialties.