Australia is as diverse as it is big, with flourishing cities, immense wilderness, and earnest, friendly people. With its iconic opera theater and annual Sculpture By the Sea outdoor art displays, Sydney caters to the sophisticated. Port Douglas is an excellent base for snorkeling or diving the Great Barrier Reef, and picturesque lighthouses stand guard along Byron Bay's beaches. Melbourne is a hive of raucous cricket activity, while the Pinnacles Desert's limestone pillars are a natural beauty.