Sunwapta Falls in Jasper National Park, Alberrta, Canada. I actually wasn't using a neutral density filter to slow down the shutter for the smooth water effect. However we got to the falls after a long hike in another part of Jasper. It was later than expected. Not late enough for the golden hour or sunset but late enough combined with the cloudy skies to have caused the smooth effect.

[agukha]

Nice shot, I like the small "island" like a boat on the stream.

[pichaser]

Wow. Thanks for sharing.