Intake pipe © Bernd Nies

Intake pipe: Diving makes stupid. I did not notice at below 40 meters depth that the autofocus of my camera was not working. Focus is hardly visible with fish eye through the eyepiece. Nikon D200, 1/2 s, F/2.8, 10.5 mm, ISO 400, Friday, June 21, 2019 09:35:22