Michael Pitts / Hydroids growing on hull of tugboat ''Blue Plunder'' wreck, Nassau, Bahamas. July 2008.

Benoit Stichelbaut / Hull of classic boat with water reflections, Antigua Classic Yacht Regatta, April 2005 (Race 2).

Benoit Stichelbaut / Shipwright hammering a chisel into the hull of replica tuna boat "Marche Avec" during construction at Concarneau boatyard, Brittany, France. 1992.

Benoit Stichelbaut / Marine carpenter working on the hull of a boat in Ateliers de l'Enfer workshop in Douarnenez, Brittany, France 1994.

Benoit Stichelbaut / Fishing boat pulled out of the water, Camaret, Finistere, France

Philip Stephen / Fishing trawler "Ocean Harvest" in Fraserburgh drydock undergoing hull repairs. May 2009. Property released.

Philip Stephen / Fishing trawler "Ocean Harvest" being lifted out of the water at Fraserburgh drydock for hull repairs. May 2009. Property released.

Philip Stephen / Engineers carrying out hull repairs on a fishing vessel in dry dock, Skagen, Denmark. March 2010.

Philip Stephen / Engineer carrying out hull repairs on a fishing vessel in dry dock, Skagen, Denmark. March 2010, model released.

Philip Stephen / Hull repairs being carried out on a fishing vessel in dry dock, Denmark, March 2010.

Toby Roxburgh / Man sketching the outline of hull planks during construction of a wooden fishing boat at the Underfall Yard, Bristol, England, UK, 2009. Model released.

Rob Cousins / Shipwrights fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008

Rob Cousins / Shipwrights fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England

Rob Cousins / Shipwrights fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008, Model Released

Rob Cousins / Shipwrights fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008, Model Released

Rob Cousins / Shipwright John Raymond-Barker fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008, Model Released

Rob Cousins / Shipwright John Raymond-Barker fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008, Model Released

Rob Cousins / Shipwright John Raymond-Barker fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008, Model Released

Rob Cousins / Shipwright John Raymond-Barker fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008, Model Released

Rob Cousins / Shipwrights fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008, Model Released

Rob Cousins / Shipwrights fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008, Model Released

Rob Cousins / Shipwrights fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008

Rob Cousins / Shipwrights fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008

Rob Cousins / Shipwrights fairing the hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008, Model Released

Philip Stephen / Fishing trawler "Ocean Harvest" in Fraserburgh drydock undergoing hull repairs. May 2009. Property released.

Steven Kazlowski / Fish eye view of a steel hull sailboat from the crow's nest, Spitsbergen, Svalbard Archipelago, Norway, July 2011

John Waters / Old wooden hull of ship or barge sunk into the sands at Berrow Flats, Bristol Channel, Somerset, UK. October 2010

John Waters / Old wooden hull of ship or barge sunk into the sands at Berrow Flats, Bristol Channel, Somerset, UK. October 2010

Toby Roxburgh / Hull section of replica of the paddle steamer Medway Queen being constructed in the workshop, before being fitted into place in the drydock, Bristol, England. Property released.

Toby Roxburgh / Hull detail of wooden cutter under construction at the Underfall Yard, Bristol, England, April 2010.

Toby Roxburgh / Hull of wooden cutter under construction at the Underfall Yard, Bristol, England, April 2010.

Toby Roxburgh / Hull of wooden cutter under construction at the Underfall Yard, Bristol, England, April 2010.

Toby Roxburgh / Hull detail of wooden cutter under construction at the Underfall Yard, Bristol, England, April 2010.

Toby Roxburgh / Hull of wooden cutter under construction at the Underfall Yard, Bristol, England, April 2010.

Michael Pitts / Divers at 30 meters, examining the exposed hull of an unknown wreck off the south coast, UK.. September 2009.

Michael Pitts / Divers at 30 meters, examining the exposed hull of an unknown wreck off the south coast, UK.. September 2009.

Michael Pitts / Diver working near the uncovered hull of an unidentified sailing ship off the south coast, UK.. September 2009.

Michael Pitts / Divers at 30 meters, examining the exposed hull of an unknown wreck off the south coast, UK.. September 2009.

Rob Cousins / Living in hull of traditional Danish Fishing boat, Bristol Floating Harbour, UK , July 2008

Rob Cousins / Man relaxing in hull of traditional Danish Fishing boat, Bristol Floating Harbour, UK. July 2008, Model Released

Rob Cousins / Man preparing food in hull of traditional Danish Fishing boat, Bristol Floating Harbour, UK. July 2008, Model Released

Rob Cousins / Carvel planked hull of Bristol Channel Pilot Cutter "Morwenna". RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England , July 2008

Rob Cousins / Carvel planked hull of Bristol Channel Pilot Cutter "Morwenna" before (right) and after (left) fairing. RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England , July 2008

Rob Cousins / Shipwright planing carvel planked hull of Bristol Channel Pilot Cutter "Morwenna" with an electric sander. RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008, Model Released

Rob Cousins / Shipwright planing carvel planked hull of Bristol Channel Pilot Cutter "Morwenna" with a manual sander. RB Boatbuilding, Underfall Yard, Bristol Floating Harbour, England. July 2008, Model Released

Rob Cousins / Man relaxing in hull of traditional Danish Fishing boat, Bristol Floating Harbour, UK. July 2008, Model Released

Rob Cousins / Man preparing paint in the hull of traditional Danish Fishing boat, Bristol Floating Harbour, UK. July 2008, Model Released

Rob Cousins / Man preparing food in hull of traditional Danish Fishing boat, Bristol Floating Harbour, UK. July 2008, Model Released

Rob Cousins / Man relaxing in hull of traditional Danish Fishing boat, Bristol Floating Harbour, UK. July 2008, Model Released

Rob Cousins / Man relaxing in hull of traditional Danish Fishing boat, Bristol Floating Harbour, UK. July 2008, Model Released

Juergen Freund / Boab / Gourd tree {Adansonia gregorii} with a split trunk and the letters "HMC Mermaid 1820" carved into it by Phillip Parker King, to record the site where his boat, His Majesty's Cutter Mermaid, was...

Mitsuaki Iwago / Domestic Cat (Felis catus) on the hull of an overturned boat in a shipyard

Onne van der Wal / Split-level view of the hull of a Shannon Shoalsailor illustrating how this innovative, keelless, shallow draft beachboat is designed to roam shallow waters such as these in Exuma, the Bahamas.

Onne van der Wal / Split-level view of the hull of the Shannon Shoalsailor and a man walking past, illustrating how this innovative, keelless, shallow draft beachboat is designed to roam shallow waters, Exuma, Bahamas.

Onne van der Wal / Man examining the propeller on the hull of a Shannon Shoalsailor. This vessel is a shallow draft beachboat designed to roam shallow waters such as those of Exuma, Bahamas.

Onne van der Wal / Split-level view of the hull of a Shannon Shoalsailor illustrating how this innovative, keelless, shallow draft beachboat is designed to roam shallow waters such as these in Exuma, the Bahamas. Model...

Onne van der Wal / Split-level view of the hull of the Shannon Shoalsailor illustrating how this innovative, keelless, shallow draft beachboat is designed to roam shallow waters, Exuma, Bahamas.

Onne van der Wal / Split-level view of the hull of the Shannon Shoalsailor illustrating how this innovative, keelless, shallow draft beachboat is designed to roam shallow waters such as these in Exuma, the Bahamas.

Onne van der Wal / Split-level shot of the hull of the Shannon Shoalsailor illustrating how this innovative, keelless, shallow draft beachboat is designed to roam shallow waters such as these in Exuma, the Bahamas.

Onne van der Wal / Underwater view of the hull of the Shannon Shoalsailor illustrating how this innovative, keelless, shallow draft beachboat is designed to roam shallow waters, Exuma, Bahamas.

Onne van der Wal / The hull of tall ship "Spirit of South Carolina" is stripped and sanded in a boat yard in Charleston, South Carolina, September 2006

Onne van der Wal / A overturned partialy restored hull at the International Yacht Restoration School in Newport (IYRS), Rhode Island, USA.

Onne van der Wal / Fairing the hull of a restored boat at the International Yacht Restoration School (IYRS0) in Newport, Rhode Island, USA.

Philip Stephen / Buckie-registered Fishing vessel "Vela" on a shiplift for hull repairs, July 2006.

Onne van der Wal / Interior boat section being lowered into the hull of a yacht under construction.

Onne van der Wal / Worker in a shipyard working on the hull of a trawler with an acetelene torch.

Onne van der Wal / The hull of tall ship "Spirit of South Carolina" is being sanded and prepped for paint in a boat yard in Charleston, South Carolina, September 2006.

Onne van der Wal / Water-line markers in Roman numerals on the hull of a wooden boat at the Newport Wooden Boat Show, Rhode Island.

Onne van der Wal / A overturned partialy restored hull at the International Yacht Restoration School (IYRS), Newport, Rhode Island, USA.

Angelo Giampiccolo / Wooden frame of the hull of a 38-metre wooden motorboat, being constructed at a boatbuilders in Fiumicino, Rome. ^^^It is rare today to see big boats such as this made of wood.

Angelo Giampiccolo / Wooden frame of the hull of a 38-metre wooden motorboat, being constructed at a boatbuilders in Fiumicino, Rome. ^^^It is rare today to see big boats such as this made of wood.

Angelo Giampiccolo / Wooden frame of the hull of a 38-metre wooden motorboat, being constructed at a boatbuilders in Fiumicino, Rome. ^^^It is rare today to see big boats such as this made of wood.

Angelo Giampiccolo / Fitters at work at the Cantieri Alfamarine boatyard, Fiumicino area of Lazio, Italy. Here a man works on the hull of an Alfamarine 78'.

Angelo Giampiccolo / Wooden frame of the hull of a 38-metre wooden motorboat, being constructed at a boatbuilders in Fiumicino, Rome. ^^^It is rare today to see big boats such as this made of wood.

Rick Tomlinson / Completed steel hull of the second superyacht 147ft "Timoneer" being towed on a barge up river in Holland. "Timoneer" a 147ft (44.75 metre) steel ketch was designed by Dubois Naval Architects in Lymin...

Rick Tomlinson / Steel hull of the second "Timoneer" being towed on a barge up river in Holland. "Timoneer" a 147 foot (44.75 metre) steel ketch was designed by Dubois Naval Architects in Lymington,UK, and built by Vi...

Rick Tomlinson / Completed steel hull of the second superyacht 147ft "Timoneer" being towed on a barge up river in Holland. "Timoneer" a 147ft (44.75 metre) steel ketch was designed by Dubois Naval Architects in Lymin...

Rick Tomlinson / J-Class "Endeavour" at La Nioulargue, 1992.

Onne van der Wal / Spray painting the hull of a boat in the spray painting booth at Hinckley, Rhode Island, USA.

Onne van der Wal / Spray painting the hull of a boat in a spray painting booth, Hinckley, Rhode Island, USA.

Onne van der Wal / Boatbuilder at work on a wooden hull, Bahamas.

Onne van der Wal / Man in the water cleaning the topside waterline on a boat's hull while holding on with a suction handle.

Onne van der Wal / Spray painting the hull of a boat in a spray painting booth, Hinckley, Rhode Island, USA.

Onne van der Wal / Fairing the hull of a racing yacht to get a smooth hull shape.

Onne van der Wal / Welder grinding the hull of a yacht.

Onne van der Wal / Underwater view of a catamaran hull in turquoise water, Belize.

Onne van der Wal / Underwater view of a yacht's hull in turquoise water, Belize.

Onne van der Wal / The Maxi Cat "Club Med" lifts a hull during sail trials off New York, USA

Onne van der Wal / The Maxi Cat "Club Med" lifts a hull during sail trials off New York, USA

Onne van der Wal / Fairing the hull of a racing yacht to get a smooth hull shape.

Marc Robillard / Bright green sea through a hole in a rusty blue boat hull. Ireland, Europe.

Marc Robillard / Rusty hull and anchor of a wreck reflected in water. Galway, Ireland.

Onne van der Wal / Underwater view of the hull and keel of "Shaman," an 88 ft yacht anchored in Tonga, part of the Vava'u Group of islands, South Pacific, 2000.

Onne van der Wal / Crew member on board "Maximus", standing on the side of the hull to check the keel for seaweed during the Newport to Bermuda, 2006.

Michael Pitts / Diver rigging part of hull of an unknown wreck to be taken to the surface for examination. Discovered off the south coast, UK.. September 2009.

Erwan Quéméré / Freshly caught tuna fish (Scombridae) in bloody hull of a fishing boat, Tunisia.