In this picture, I once again blended 3 different Exposures. One for the sky, one for the buildings and the 3rd one, the water. For the water, an exposure of 20 seconds was used to give it a very smooth surface. The sky has a short exposure of 3 seconds and the buildings were exposed by shooting an 8 second exposure.
All the Images taken on a 5D Mark II with Carl Zeiss 18mm F3.5 ZF. Processed in CameraRaw and Photoshop.