While reading about the ghost ship Jiang Seng I noticed that Wikipedia claimed it was drifting in uncharted waters in the Gulf of Carpentaria. I tried to find a primary source referencing uncharted waters but couldn't find any so this may just be one editor's penchant for artistic license.

Regardless it got me thinking: are there any oceans or perhaps other parts of the world that can still be called uncharted? Or has satellite navigation and imaging given us a complete picture of our globe?