We took a walk up the Rio Chillar this august and it was still a lot of water in the river. We walked for about 1.5 hour, but didn’t end up at the waterfall. I was supposed to be about another hours walk more, and that was a bit hard. Not easy walking thru the water upstream and lots of slippery stones. Maybe next time. Lovely place and a very nice walk! Lots of people and lots of dogs!