Start your trip by exploring the vibrant city of Cagliari, the capital of Sardinia. Begin your day by visiting the historic district of Castello, where you can wander through narrow streets, admire medieval architecture, and enjoy panoramic views of the city from the Bastione di Saint Remy. Don't miss the Cagliari Cathedral, a stunning example of Romanesque architecture. In the afternoon, head to Poetto Beach, a beautiful stretch of sand where you can relax, swim, or try some water sports. End your day by indulging in delicious Sardinian cuisine at one of the local restaurants.