It's so obvious what you say is true mate. Went to New Brighton for the first time in ages and couldn't believe the colour of the sand and the clear water with fish visible. I remember it as mud and a smell of oil and turds. It was cleaner than many a beach and seafront than the Costa Del Sol. Truly amazed.Another factor is that there's not quite the river of excrement and urine flowing in to there that some people might think there is. I mean, obviously human waste is processed there, but I'm pretty sure it also processes other waste water from appliances and baths, showers, etc as well as a never ending supply of rainwater. It's not just a river of faeces and bog juice.