Whi-Bal At Work...Dry and Wet!!

What do I most like about the Whi-Bal reference cards?  They are rugged and waterproof, permitting an ease of use even for underwater photography, as I explored for the first time during a dive trip to Roatan, Honduras in 2006.  Here are just a few sample photos showing a 50/50 split comparison between the original "as shot" color rendition, and that adjusted for the white balance in Adobe Camera Raw.  The adjusted image is either the right or bottom half of each image.