Pridak-1 is a submarine vehicle that can explore, and conduct research at immense depths. With its streamline and hydrodynamic design it can travel at extreme speeds along the ocean surface. It carries two arms with specialized tasks: one being a claw for retrieving artifacts and the other a metal detector for finding them. It's white and red colour scheme replicates that of the Barraki named Pridak who once resided in the depths of Mahri Nui's Pit. This brings a level of meaning to the submarine's name appreciated by any Bionicle fan.