Scuba Diving the Code hole with the Sailing Catalpa Family. The crew of Sailing Catalpa found out why it's called the Cod Hole... pristine waters, incredible marine-life and massive cod! What's not to love about that. Torres Strait is the body of water, and countless islands, that spans Australia to Papua New Guinea. It's a body of water left fairly unexplored and is enticing to all scuba divers.