I found this lovely spot whilst on a walk in Glen Nevis. Whilst tempted to take a wider image I was attracted to some rocks in the middle of the running water. I used the Little Stopper neutral density filter to lengthen the exposure time.

The technical bit:
Location - Glen Nevis, Scotland
Camera - Nikon D800
Lens - Nikon AF-S 105mm f/2.8G ED-IF VR Micro
Aperture - f11
Exposure - 15 seconds
ISO - 100