Haha, good question!
Took a heap of photos, changed a lot of things as i went, pretty sure these were: 1/160 - F/5.6 - ISO 400, i took them into Photoshop (i have an older copy of Elements 9) and did an auto adjust to filter out some blue and brighten a little to get them to where they are now.
With the D5100 i can manually set white balance, however I cant for the life of me get it to set in the water and no idea why. These were taken at around noon, with lights at their peak (for the settings I'm using anyway).