So I double-checked and I did indeed move the Vibrance from 0 to +20... BUT! when I moved it down to 0 out of curiosity, it doesn't have a huge impact on this particular photo. The colors truly do come from contrast / white balance adjustments and of course amazing light! Boosting Saturation / Vibrance a lot is a quick-fix but doesn't look as good in my experience. The world is truly a colorful place!