An hour and a half by yacht from Dubrovnik, Mljet is often called 'the green island', for its larger parts if covered in dense Mediterranean forests that give a splendid and mystic feel. At the western tip, discover the National Park Mljet. For some two hours, roam around its Great and Small lake with local guide. Then hop on the boat to St. Mary's islet with the 12th century Benedictine Abbey. Once home of prominent Benedictine writers and scientists, today this sight is made up of historical treasures and stunning views. Before heading back to Dubrovnik, take a dip in one of Mljet's secret bays.