If your trip to Costa Serena is all booked but your travel itinerary is looking a little empty, let us give you a few hints and tips.Bear's Rock and Maddalena Archipelago National Park are some interesting attractions that everybody should make time to stop by. Map out your route and spend a few hours exploring each one.Not far from the heart of the city, Porto Pollo Beach is one sight you might like to add to your to-do list. La Sciumara Beach and Palau Ethnographic Museum are also a stone's throw away and worth a detour.