Archive: https://archive.today/Y2uy1 From the post: >>Even though there are plenty of lakes in Denver’s parks, cooling off in a body of water in the Mile High City isn’t as easy as it seems, and there’s a reason for it. You’re not allowed to swim in Denver park lakes – and even if you were – you wouldn’t want to swim in them anyway. Denver Parks and Recreation told FOX31 that people can’t swim in park lakes because it’s a safety concern as there are no lifeguards on duty. While this is one concern, it’s also for your health. Lakes at City Park and Washington Park look like the perfect places to cool off on a summer day, however, the Denver Department of Public Health and Environment doesn’t recommend swimming in any city streams or lakes due to the runoff.