During our sailing trip to Southeast Alaska last summer, we experienced a strange optical phenomenon, at least twice.
Today, I learned that it's called a Fata Morgana.
We saw it when sailing. We couldn't understand what was ahead and astern of us. The land was distorted, mountains and trees were stretched and/or compressed together, on occasion some would appear inverted.
It is nice to finally put a name to this ^^
(Photo by PtrQs, CC BY-SA 4.0)
@rek Apparently it will sometimes make ships appear above the horizon, which is probably how legends of the Flying Dutchman got their start.