A while ago I played around with taking pics of the underside of a buoy, which was fun, and so i wanted to practice this some more. My mistake the first time (see here) was to use a fast shutterspeed (the buoy was bobbing about after all) which made the water look unnaturally dark. I tried again this weekend and it went a bit better, although I already know I can improve things. This time I thought it would be nice to put some names to the amazing fouling biodiversity (I did this before for some seaweed images, see here). Crustaceans (tube-dwelling Jassa), Sponges, Bryozoans, Seaweeds but especially a lot of Tunicates (seasquirts; both solitary and colonial species). David Fenwick (of AphotoMarine fame) had a quick look to help with some IDs; there is a more there but this was not meant to be exhaustive. I have underlined species that are invasive. Anyway, I am sure I will post more of these types of images: the buoys are always there and these organisms do not swim off when you try to take a photo!
An Bollenessor 
Fascinating. They might not run away but I imagine the bouys are far from still! I’m still practicing photographing sea squirts etc on rocks!
yep, I discovered macro is not an option…pontoons will work better in that respect but not all of them are open to the public (I was asked to leave the Mylor Marine pontoon a few years back).
Weren’t you wearing red trousers?
Haha, that would have been a good disguise!