Spoiler....

Don't say I didn't warn you, but there is no "Pot of Gold" at the end of a rainbow. I was riding the ferry yesterday when I saw this over the water. I could clearly see both ends of the rainbow on the water, but the ferry window didn't allow me to capture the entire rainbow on my camera screen. I felt like the captain could have steered the ferry right through the center of it.

I wonder what a rainbow looks like from the underside....