A vast island continent, Australia teems with natural and cultural treasures. Relax on gorgeous beaches along the sprawling coastline, or plunge below the water in Queensland to explore the Great Barrier Reef. Nature enthusiasts revel in exciting adventures in the interior, from trekking around majestic Uluru to spotting wildlife in tropical rain forests. But there's more to life down under than outdoor activities. Cosmopolitan cities like Sydney and Melbourne entice with thriving dining and arts scenes, while world-class vineyards abound.