It was new for me too Jens, so thanks to Husni for noticing it and John for the explanation,
Maybe I will try to take a close up photo next time...or maybe not :-).
I am also glad you liked the scenery just like me MattyBoy :-)
Have a nice day all.

Brgds,
Geir

Hi, thank you all for the explanation:-))

I knew the German "Donnerbalken" (which actually is the translation of thunder box) but didn't know that it was used on ships, too...

Thunder box aside,those look pretty big barges.

Ha,ha,ha, yes, it's all very civilised of course ! Nothing like the sea air to reach the parts.........

One level above 'bucket and chuck it'

I have try go inside, but made me tremble ..hehe

Jens, it is a roughly constructed toilet which gives some privacy to persons using it. There will be no water supply and the deposits go directly to the sea/river. Often used in poorer parts of the world where a large number of local labour are on board for cargo work. In my time at sea there was normally a fully equipped toilet with access only from the deck to allow shoreside workers toilet facilities. In some parts of the world this single toilet would be overwhelmed by the number of people needing such facilities. They are also often fitted at the bow also, where the bow flair assists in dispersal.

Hi jens look at photo comments http://www.shipspotting.com/gallery/photo.php?lid=2466663

What's a thunder box?

Great picture - working cranes, barges alongside, busy crew & thunder box on the stern - brilliant !!!