JAGO is a submersible primarily dedicated to exploration and research in marine sciences. Check it out here: http://www.geomar.de.../jago/overview/
I virtually built it by SR3D Builder (LDraw system) and rendered it by Pov-Ray.
Regarding the “Shark-Render” I used media and scattering for generating the “foggy” appearance of the underwater scenery. The sharks are from Lego 4506 Deep Sea Predators (posted by C3POwen in "Official Lego Sets made in LDraw").
Papacharly