Explore hiking trails around Alzachèna/Arzachena, Sardegna. The best hike near Alzachèna/Arzachena is Punta di a Vacca Loop via GR20 and GR20, Alpine Alternative, a 6.8 mile loop in Parc naturel régional de Corse. Alzachèna/Arzachena has population 13000.0.