Recently deceased sea creature eaten by predator off the coast of Australia. The largest invertebrate, Giant Squid lives only in water. A GIANT squid, one of the most mysterious and least understood of marine creatures, has been found floating off the south coast. A twelve foot giant squid has been spotted off the coast at Jervis Bay on the NSW South Coast. Although it was found dead, it's proof that this incredible creature .They have large eyes as big as the basketball, which helps them search their food in deep oceans. Watch a blue shark attempt to devour three-metre long remains of a fresh giant squid floating off Jervis bay on the NSW south coast.