Date: 8 December 2008Time: 8.05am. That's right.Location: HarbourWeather: post-precipitation, approximately 13 celcius. Slight windchill.Observation: four laughing, dripping wet, barefoot, teenaged girls wearing bathing suits, one carrying an inflatable rubber ring. Wrapped loosely in giant colourful beach-towels, they were clearly returning from an early morning dip in the frigid waters of