We are cruising 10-day Mediterrean from Barcelona in June, with a port itinerary in Cagliari, Sardinia, Italy. We've never been to this port, and wondering if anyone has done this cruise, is it possible to walk to a nice beach from the port? We are early 60s, excellent health and capable of walking a few miles. Also wondering about the ease of navigating to the beach (directions/geography not our strength).