I don't know where this is.  Maybe the Panama Canal? Taken from the front of the Coral Princess in January 2012.

Des Informations, des Idées, et des Opinions Suspectes - rarement mises à jour et de qualité douteuse.

xkcd

xkcd comic: Fermirotica  

I'm just discovering this now, though I think it's been around for a while.

xkcd

This background is: seawater_under_a_microscope_small.jpg. It has an average lumosity of: 192.4 and came from: subtlepatterns.com
ACTUALLY, this background is seawater_under_a_microscope_small.jpg. It has an average lumosity of: 229.57425742574 and came from: me! I made it myself!
Maybe read No Big Deal, my favourite story I ever wrote.