in for 4 weeks now from the western german city of kabul and from the rhine to the capital dalin in the northeast of the country. even the greatest thing on this was a trip of 750 kilometers it was to come up against your limits when you think you'll never make it then you get a 2nd wind and then you do it because this is not my. geminis rivers look so clean but 7 years ago stefan started collecting garbage on his kayak until there's. a mist as that's precisely the problem. in rivers in asia you see it immediately because there's so much of it. before here it's not so visible because you've got some over here and some over there so we have to hunted down. but after 6 kilometers we've typically collected 500 kilograms. he started out doing the collecting on his own he'd make an arrangement of the garbage from the rivers photograph it and put it on display it's the photo designer's way of making be invisible waste plain for all to see. on 40 i took a photograph that shows a kayaker from above paddling on garbage this is the average amount of garbage from one kilometer of river in germany