This preset is, as the name implies, excellent for a photo with fog like the photo with this item. You can download the preset below. Install it in Siver Efex under the "Imported" category by clicking on the + sign. the rest are self-explanatory.
Below an example of a photo that has been edited with this preset. By clicking on it you can see it large and you can quickly switch back and forth between both photos to see the differences.
Download the preset:
Click on the photo below to view it on Flickr.