Years ago sewage was pumped into the ocean toward the port end of the Malecon, it used to stink down that end and you would see dead animals floating around but I think that it has cleared up at that end. Towards the other end, as everyone has mentioned, there are kiosks, and close to these kiosks are public toilets....now where does the septic waste from these toilets go? And where does the dirty water from the restaurant/bar kiosks go? I don't know the answer to this, but somehow I doubt they have septic tanks! Think twice about entering the water nears these locations!