These are rockpools that were at the bottom of the mountain that our second hut sat atop. After a hard full days hiking up and down hills in pretty strong sun, these pools were most welcome for a little dip and splash around. And no, the water isn’t dirty, it’s tanin (tannin?) which colours the water because of the plants apparently. This water is safe to drink (and drink it we did, it’s mainly the only water supply along the hike) but even better for a cooling dip.
Some people pay good money for this kind of spa infinity pool. Also helps wash all the sweat and crap off meaning you don’t need to go in the cold shower.