When we went on the Star last October (and the October before as well!) there were various activities going on onboard throughout the days in port. For example : 10am Bagatelle tournament; 11am deck shuffleboard; 12pm table tennis tournament; 1pm carpet bowls tournament (we did that - great fun!!); 2pm giant draughts; 3pm round the clock darts; and not forgetting the daily poolside trivia quiz at 4pm which was very popular and again a good laugh. So there is plenty to do if you don't fancy getting off the ship. As for Olbia - we called there on last years cruise and to be honest it seemed a bit of a dump. We chose that day to go on one of the bike trips through the surrounding countryside and it was really enjoyable. Hope you have a good time and if there's anything else you want to know,please feel free to keep asking!