did you use any filters to go along with these shots? or was it ps edits? (to get the beautiful blues) i was just wandering because you said this trip made you decide to get one.
I think you got it right. I did NOT use any filters. It made me decide to get a couple since the sky pictures taken toward the sun (ie towards the water) was washed out, while the once pointed away wasn't.
I purposely underexposed the image (I usually do this on sky shots) and then brighten them up, and add back the saturation on PP. I have PS Elements 2 but I was lazy, so I just used Google's Picasa 2 for these.
Here's a copy of the original and Picasa'd: