Holy bejeezus. Photos just don't do justice at all, but I had a total "wtf" moment this morning.
I couldn't sleep, and noticed the the world was unnaturally foggy today. Being a photographer's dream, I decided to run down to the beach and take video of whatever was going. I spent probably way too long chasing birds through the fog. After I realized they'd probably had enough of me, I turned around and began walking back to my car. As I turn, I see a weird shape in the blinding fog. Half arc, about 10 feet in front of me. I look back towards the sun/birds, see if that's just a weird thing and my eyes are playing tricks on me. Not the case! I stand in awe for at least 5 minutes... As I pull up the camera to document (if possible) it moves away and clarifies. Within the next 5 minutes its several hundred feet away, but more defined.
Eventually the sun burns off a good amount of remaining fog and I see... What must be a rainbow made of fog? So weird. Anyway, the whole deal felt like I was about to battle the smoke monster from Lost.
I later told my story on Facebook and was informed that fog rainbows are an extremely rare thing, also sometimes referred to as a "fogbow" or "white rainbow". Whatever they're called, it totally made my day.