Sky or Sea?

[dgilmour]

[No message]

 

[Marcus E.]

Sky. Too much lack of symmetry to be a boat trail. Great image though. Lots of depth to it. Sort of just sucks me in.....

 

[Wiener]

I'm guessing if you had pulled back the saturation on the blue and cyan, it might have been less easy to 'know' the answer...
Nice shot!
Andy

 

[AlbertTRAL]

Curious and attractive sky!

 

[Orol]

Interesting cloud formation. Well spotted, Sergey.

Peter