Upper section of Lumsdale Falls at the site of the old mills. long exposure on a tripod to capture the silky smoothness of flowing water. The image was converted to black & white to focus the eye on the water rather than the surrounding vegetation.

Nikon D800, Nikon 50mm f/1.4 lens, Benro tripod & geared head, Hahnel wireless shutter release.
f/16, ½s, ISO-100

GIMP: Desaturate, adjust curves