Runoff stream in Bukit Timah

I didn't photograph them, but a person had brought some plastic jugs and was gathering water from this stream. No idea why and they didn't seem social enough to ask.

Camera

Sony A7R V

Lens

FE 70-200mm F4 Macro G OSS II

Focal length

70 mm

Aperture

ƒ/4.0

Shutter speed

1/20 sec

ISO

100

Program

Manual

Metering

Pattern

Flash

Did not fire