Koeëlbaai (Kogel Bay), Western Cape, South Africa.
Taken at the 18mm end of the lens. I used a 2-stop neutral density filter to increase exposure time and a 3-stop graduated neutral density filter to hold back exposure in the sky.
Nikon D200 with 18-70mm f/3.5-f/4.5 lens.
Exposure: f/16, ISO 100, 2.5 seconds.