Leisurely Bathing in a Dirty Swamp of Amsterdam

Photo of men and women in their fourties, bathing leisurely in a swamp. The background should be the city of Amsterdam. Some people in the picture should be having a conversation, discussing something they do not agree on. Others are laughing while looking at their mobile phones. The swamp should be dirty and smelly, with lots of trash floating around. Make it really dirty. We can an old rusty bicycle wreck sticking out of the muddy, murky slush. Give the picture a atmosphere of doom. A place that really smells bad