best viewed at original size.

Past ‘The Tip’, we leave the Great Barrier Reef and enter the waters of Torres Strait.
Torres Strait is a 150 km-wide waterbody that separates Australia from Papua New Guinea to the north, and the Coral Sea/Pacific Ocean to the east from the Arafura Sea and Indian Ocean to the west. It is a submarine ridge between Australia and Papua New Guinea, but only just submarine; it is dotted with islands and, remarkably, the entire ridge is no more than 10 m below low-tide sea levels. This generates substantial problems for larger ships, but not for the MV Trinity Bay with its draught (draft) of 5 m.