This port is on a cruise itinerary I'm considering. Olbia is not a place one often hears about. I'm hoping that people can tell me what sorts of excursions one might do from this port. I have no interest in shopping, and while I do like beaches, I don't especially want to go to the beach on a cruise vacation. Are there interesting walking trails in the area? Great scenery? E.g., is the scenery as handsome as the area around Capri? Is there anything of special historical or archeological interest?