Well designed to move crowds in/out, Cathy Freeman Park is a large, flat, grass area excellent for festival-style events. The nearby fountain and playground are great for kids, and there are toilets nearby for later clean-up. In Australia, the problem is always one of cover - there is minimal shade on the park so bring hats, sunscreen, sunglasses, umbrellas, etc. While there is one public bubbler nearby (with a pathetic dribble), there is also nowhere to refill water bottles so come prepared. Or duck into the nearby Locker Room pub for refreshments. The nearest (paid) parking is P1 and P8 and if you're not daunted enough by that somewhat industrial, local-knowledge description, please note that both carparks are about as far from the Cathy Freeman Park as the train, so public transport really is a viable option.