The Adelaide of this millennium is infinitely more complex, with a large, multiethnic population and thriving urban art and music scenes supported by a "space activation program" that encourages pop-up shops, markets, performances, street food, mini festivals, art exhibitions, and other "off-the-cuff" experiences in the cities underutilized streets and public spaces.Bright and clean, leafy and beautiful Adelaide is a breeze to explore, with a grid pattern of streets encircled by parkland. The heart of the greenbelt is divided by the meandering River Torrens, which passes the Festival Centre in its prettiest stretch.