The shipwreck hunter: a lifetime of extraordinary discoveries on the ocean floor

MV Lucona: murder and fraud on the high seas

MV Derbyshire: lost without trace

HMS Hood and KTB Bismarck: search for an epic battle

TSS Athenia: the first casualty of World War II

HMAS Sydney (II) and HSK Kormoran: solving Australia's greatest maritime mystery

ASH Centaur: sunk on a mission of mercy

Esmeralda: Vasco da Gama's second armada to India

USS Indianapolis and Endurance: waiting to be found.