Hey, this water you are swimming looks very dirty and I don't think it will be good for your health. Perhaps, something dangerous can be in that water and can harm you. Why don't you look for a swimming pool that is clean and well treated instead of exposing yourself to some kind of sickness from this dirty water. Be very cautious of your health even if you find it fun and pleasure.
If something dangerous is in the river,I think locals in that very community that's often makes use of the river would have restraint people from going close to it and perhaps @popoluv wouldn't endangered his safety all because he wants to swim. I haven't seen any river that's 100% germs free,even the swimming pools your advising him to make use of is not 100% safe as some swimmers making using of the pool often salivate in it,some goes as far urinating in it while swimming. You might know all of this if you're not carefully observing activities goings-on in most public swimming pools,better still I prefer him swimming in a clean river where the water is flowing continuously or maybe he should have his personal swimming pools at home if possible.
