Smooth.

This is the Derwent just before it passes Cockermouth Castle and flowing through the town and on to the sea at Workington.  I used a 10 stop filter as the sun coming from over the castle was very harsh.  The filter and long exposure smoothed out the choppy water giving me the result I wanted.  Near where this photo was taken is a disused mill race leading to Gote Mills.  No masks were used on this photo!