Maybe try "auto" next time... that's how I shoot but occasionally (don't) see this, too....
Oh, OK, now I see an image... in response, the sky is REALLY bright (3 or 4 stops over exposed) and that blue haze- if that's to what you're referring- is lens flare. Perhaps a smudged filter or lens surface contributes... Flares are most notable in shadow areas
Taken with a Nikon P900 near the West coast of Florida on a nice sunny day with the sun behind my left shoulder at 9:15 am on 12/2/17. ISO 400, 35mm (film equivalent), f8, 1/40, spot meter, auto white balance, set on Manual with AF using a tripod, VR off, unprocessed. I have seen this in very few of my photos. What happened and how can I stop this from happening in the future. Thanks for your help, Paul