Cagliari & Poetto
car-free first trips, food, history and a city-beach combination
Choose Cagliari when museums, markets and dinner variety must survive a cloudy day and you want to add one or two planned south-island excursions.
Sleep: Marina is lively; side streets or Villanova can be calmer.
Check the exact contour between the hotel and Castello; a short map distance can include a demanding climb, and beach-facing accommodation may weaken the evening walkability you expected.