From Reykjavik, drive southeast on Iceland's Ring Road. The waterfall is located between the towns of Selfoss and Vik.
This final image is a blend of two exposures. Blending was performed in Photoshop, using a Layer Mask.
A soaking spray from the waterfall made it extremely difficult to avoid getting water on my lens and camera; however I was determined to capture sunset's colors from this vantage point. I set my aperture to f/8, to allow for a shorter exposure, and quickly placed the lens cap over the lens in-between each exposure, to give me a better chance of avoiding water droplets from appearing on the image.