These two big pipes supplied water form the Klang Gates Dam to most parts of Kuala Lumpur. Not sure if they still do. I used to come here as a kid while playing truant from school. The challenge among us was to cycle on top of the pipe. What crazy things we do when we were kids. I feel dizzy just standing on top of it now.
The river is now shallower due to silting and the rocks and boulders are all gone. There were no human settlements nearby then. I remember eagles soaring above the quartz ridge. All is gone now.