They are some-kind of parking bays for boats, I don't really know the exact word in English for them. They attach the boats with them. Thanks for the good feedback paigew and Alane!
This is a beautiful shot, and the B&W conversion did it justice (although I'm not a fan of the vignetting you added, most visible in the top corners).
It says that you're OK with others editing your images so I'm taking the liberty of suggesting a re-crop (I hope you don't mind):
I think that the sky was not really adding anything, so I cropped a bit of it. As a result, the subjects in the foreground are highlighted. I also did crop a bit off the left-hand side (only because after cropping the sky the resulting aspect ratio was not working for me). Finally, when I was getting ready to save I decided to darken the top of the image a tad, to highlight the foreground even more.
Great shot and nice conversion. Although I would consider a bit of a localised contrast boost to the buildings in the background to balance out the dark boat at the front.
Thanks for the great feedback guys! Thanks invisible for the edit I agree with you.:thumbup: I was contemplating weather or not to crop the sky out when I edited the photo.