Derek Galon / Shipwreck washed ashore by hurricane Maria. Dominica, December 2017. Stitched panorama. Wrecks like this appear picturesque but may release toxic materials from the hulls.

Jack Dykinga / Wrecked ship with cormorant colony, on Namibia's skeleton coast, Dorob National Park, Namibia. July 2013.

Michael Pitts,Michael Pitts / Engine room ventilator shafts of oil tanker 'Seiko Maru'. Sunk in Chuuk Lagoon 17/18th February 1944, Chuuk Lagoon, Pacific

Michael Pitts,Michael Pitts / Divers on the wreck of the tugboat, 'Tienstin'. Abu Galawa, Red Sea, July 2010

Michael Pitts,Michael Pitts / Wreck of Aichi E13A, Japanese World War Two float plane, sunk by American fighters, Solomon Islands.

Sue Daly,Sue Daly / Jewel Anemones (Corynactis haddoni) colonising the wreck of HMNZS Canterbury, Bay of Islands, New Zealand, February 2013

Ernie Janes / Three fishing boats wrecked on the coast in winter storms, Pembrokeshire, UK,

Jeff Rotman / Looking down on the shipwreck of the small freighter 'Ora Verde' that sank in 1980, Grand Cayman Island, Caribbean Sea Model released.

Jeff Rotman / Shipwreck of the small freighter 'Ora Verde' that sank in 1980, Grand Cayman Island, Caribbean Sea

Roberto Rinaldi / Wreck of crude oil super-tanker "Amoco Milford Haven", populated by shoals Swallowtail anthias (Anthias anthias) and Bogues (Boops boops). The tanker sank on April 14th, 1991 after three days of fire....

Roberto Rinaldi / Stern of crude oil super-tanker "Milford Haven", which sank on April 14th, 1991 after three days of fire. Genoa, Italy, 2007.

Neil Lucas / Cameraman Mike Pitts, diving for BBC Filming 'Life' The Bahamas, Caribbean, February 2007, Model released