SS Bombo - blue photos

It was blue water diving at the SS Bombo (off Wollogong) after all - or to be more precise, after using picasa.
Some examples of "before" and "after picasa processing".

In each of the following sets of photos, the first photo is the original (canon G7 in a canon housing, with a red filter and auto white balance), the rest are after using picasa mainly the "tint" filter with about 50% color preservation.