Sinking ships for wreck diving sites
Sinking ships for wreck diving sites is the practice of scuttling old ships to produce artificial reefs suitable for wreck diving, to benefit from commercial revenues from recreational diving of the shipwreck, or to produce a diver training site.
To avoid undesirable ecological impact, and to maximise utility, the vessel should be selected and prepared, and the site chosen, with due consideration to the local environment.
Preparation
[edit]To prepare a hulk for sinking as a wreck site, several things must be done to make it safe for the marine environment and divers. To protect the environment, the ship is purged of all oils, hydraulic fluids, and dangerous chemicals such as PCBs. Much of the superstructure may be removed to prevent the hazard of it eventually caving in from corrosion. Similarly, the interior of the ship is gutted of components that corrode quickly, and would be dangerous to divers if they came loose. The ship is thoroughly cleaned, often with the help of volunteers interested in diving. A significant part of the cost of preparing and sinking the ship may be recovered from scrapping the contents of the ship, including valuable materials such as copper wiring. The hulk's suitability as a diving site may be enhanced by cutting openings in its hull and interior bulkheads, and removing doors and hatch covers to allow divers access at reduced risk.[citation needed]
Choice of site
[edit]Several factors influence the choice of site for recreational diving purposes, and these should take into consideration the possibly conflicting economic and ecological considerations.
- The wreck should not create a significant hazard to navigation.
- For maximum accessibility and diver safety, a shallow site in protected waters is preferred.
- To reduce cost of access, the site should be near to a suitable harbour or launching site, in a region where existing or planned recreational diving infrastructure is available.
- There may be a conflict of interests between groups which may profit from access to the wreck.
- Sites further offshore make shore dives impracticable or dangerous.
- Deeper water reduces access to less qualified divers, but increases risk for all divers.
- More protected waters reduce risk to all divers and increase the useful lifespan of the wreck as a diving attraction.
- Placement of the wreck will do some ecological damage. An ecological impact assessment should indicate acceptable long term consequences.
- The site will influence the marine organisms that will colonise the wreckage, and the rate at which they will grow. Some may be more desirable at a dive site than others.
- The site will influence the rate of silt deposition in and on the wreckage, which will affect safety and the local ecology.
Sinking
[edit]
The preparation phase usually removes a significant amount of weight, so the ship floats higher in the water than normal. This may make it necessary to stabilise the vessel by filling some compartments with water as makeshift ballast tanks to prevent excessive rolling in port or during towing. The ship is towed to the sinking location, usually in waters shallow enough to allow access by numerous divers, but deep enough to be relatively unaffected by surface weather conditions. The ship is usually scuttled using shaped explosives, in a controlled demolition. The holes may be blown so that the heavier engine room and stern floods first, then the rest of the hull. The aim is to sink the ship in an upright position.[citation needed]
Reception
[edit]The sinking of ships as recreational dive sites can provide wreck diving opportunities where they previously did not exist, and can provide wrecks which are particularly suitable for penetration by less skilled and experienced divers, when they have been prepared for the purpose by removing potential hazards and contents which would contaminate the site or region. However, some divers see them as artificial, less interesting and less challenging, and prefer to explore the relatively unknown or mysterious surroundings of historic and significant wrecks which occurred outside planned scuttling events, considering them to be more authentic. Scuttling programs may relieve more culturally significant wreckage from overexploitation, particularly incidental damage by less competent divers, but do not remove the threat of illegal intentional damage by removal of artifacts by wreck-robbers, who will target wrecks where there are more likely to be artifacts worth stealing.[1]
List of ships sunk for wreck diving
[edit]| Year | Vessel name | Location | Country/territory |
|---|---|---|---|
| 1942/1984 | Scirè | Haifa, Israel | Israel |
| 1944 | Jun'yō Maru | Samalona Island, South Sulawesi | Indonesia |
| 1968 | USS Mizpah | Palm Beach, Florida | United States |
| 1970 | Glen Strathallen | Plymouth Sound | United Kingdom |
| 1970 | Mohawk | Wrightsville Beach, North Carolina | United States |
| 1972 | USS Fred T. Berry | Key West, Florida | United States |
| 1974 | SS Theodore Parker | North Carolina | United States |
| 1975 | USS Mona Island | Wachapreague, Virginia | United States |
| 1978 | USS Dionysus | North Carolina | United States |
| 1980 | Oro Verde[2] | Cayman Islands | |
| 1980 | USS Harlequin | Isla Mujeres | Mexico |
| 1980 | USS Mindanao | Daytona Beach, Florida | United States |
| 1982 | USS Scrimmage | Waianae, Hawaii | United States |
| 1982 | MS Logna | Grand Bahama Island | Bahamas |
| 1983 | USS Curb | Key West, Florida | United States |
| 1985 | Eagle | Florida | United States |
| 1987 | USS Accokeek | Gulf of Mexico | United States |
| 1987 | USS Strength | Panama City, Florida | United States |
| 1987 | Rainbow Warrior[3] | Matauri Bay | New Zealand |
| 1987 | USCGC Duane[4] | Florida | United States |
| 1987 | USCGC Bibb[4] | Florida | United States |
| 1987–2000 | Wreck Alley | San Diego, California | United States |
| 1988 | USS Vermilion | Myrtle Beach, South Carolina | United States |
| 1988 | USCGC Unimak | Virginia | United States |
| 1988 | USS Rankin | Stuart, Florida | United States |
| 1988 | USS Aeolus | North Carolina | United States |
| 1989 | USS Muliphen | Port St. Lucie, Florida | United States |
| 1989 | USS Blenny | Ocean City, Maryland | United States |
| 1989 | YO-257 | Oahu, Hawaii | United States |
| 1990 | USS Yancey | Morehead City, North Carolina | United States |
| 1990 | USS Chippewa | Destin, Florida | United States |
| 1990 | T-Barge | Durban | South Africa |
| 1990 | USCG Hollyhock | Florida | United States |
| 1990 | Fontao | Durban | South Africa |
| 1991 | MV G.B. Church[5] | British Columbia | Canada |
| 1991–2001 | "Wreck Alley" – Marie L, Pat and Beata[6] | British Virgin Islands | |
| 1991 | USS Algol | New Jersey | United States |
| 1992 | MV Rozi[7] | Ċirkewwa | Malta |
| 1992 | USS Indra | North Carolina | United States |
| 1992 | HMCS Chaudière[5] | British Columbia | Canada |
| 1994 | HMCS Saguenay | Nova Scotia | Canada |
| 1994 | SAS Pietermaritzburg, formerly HMS Pelorus | Miller's Point, Western Cape | South Africa |
| 1994 | HMAS Derwent | Rottnest Island | Australia |
| 1994 | INS Sufa | Eilat, Israel | Israel |
| 1995 | MV Jean Escutia | Puerto Morelos | Mexico |
| 1995 | HMCS Mackenzie[5] | British Columbia | Canada |
| 1996 | Inganess Bay[8] | British Virgin Islands | |
| 1996 | MV Captain Keith Tibbetts (formerly Russian-built frigate 356) | Cayman Brac | Cayman Islands |
| 1996 | HMCS Columbia[5] | British Columbia | Canada |
| 1997 | HMAS Swan[9] | Dunsborough, Western Australia | Australia |
| 1997 | HMCS Saskatchewan[5] | British Columbia | Canada |
| 1998 | Tug No. 10 | Marsaskala | Malta |
| 1998 | St. Michael | Marsaskala | Malta |
| 1998 | Um El Faroud[7] | Qrendi | Malta |
| 1998 | MV Adolphus Busch | Looe Key, Florida | United States |
| 1999 | MV Xlendi[10] | Gozo | Malta |
| 1999 | HMNZS Tui | Tutukaka Heads | New Zealand |
| 1999 | USS Scuffle | Cozumel | Mexico |
| 1999 | MV Imperial Eagle[11] | Qawra | Malta |
| 2000 | Stanegarth | Stoney Cove | United Kingdom |
| 2000 | HMCS Yukon[5] | San Diego, California | United States |
| 2000 | USS Fort Marion | HaiTzuKuo, Xiaoliuqiu | Taiwan |
| 2000 | USS Knave | Puerto Morales | Mexico |
| 2000 | HMNZS Waikato | Tutukaka | New Zealand |
| 2001 | USS Jubilant | Veracruz | Mexico |
| 2001 | HMCS Cape Breton[5] | British Columbia | Canada |
| 2001 | HMAS Perth[12] | Albany, Western Australia | Australia |
| 2002 | HMAS Hobart | Yankalilla Bay, South Australia | Australia |
| 2002 | USS Spiegel Grove[13] | Florida | United States |
| 2002 | MV Dania[14] | Mombasa | Kenya |
| 2003 | HTMS Khram (L-732) | Ko Phai | Thailand |
| 2003 | USS Leonard F. Mason | Chaikou, Green Island | Taiwan |
| 2003 | HMCS Nipigon | Quebec | Canada |
| 2003 | CS Charles L Brown[15] | Sint Eustatius | Leeward Islands |
| 2003 | MV Camia 2 | Boracay island | Philippines |
| 2004 | HMS Scylla | Whitsand Bay, Cornwall | United Kingdom |
| 2004 | USCGC Spar | Morehead City, North Carolina | United States |
| 2004 | Hebat Allah [16] | Hurghada, Red Sea | Egypt |
| 2005 | HMAS Brisbane | Mooloolaba, Queensland | Australia |
| 2005 | HMNZS Wellington | Wellington | New Zealand |
| 2006 | Xihwu Boeing 737[5] | British Columbia | Canada |
| 2006 | USS Oriskany (CV-34) | Florida | United States |
| 2006 | HTMS Kut (L-731) | Pattaya | Thailand |
| 2006 | MV Karwela[7] | Gozo | Malta |
| 2006 | MV Cominoland[7] | Gozo | Malta |
| 2007 | P29[7] | Ċirkewwa | Malta |
| 2007 | USTS Texas Clipper | South Padre Island, Texas | United States |
| 2007 | HMNZS Canterbury | Bay of Islands | New Zealand |
| 2007 | USS Cruise | Delaware Bay | United States |
| 2009 | USNS General Hoyt S. Vandenberg[17] | Key West, Florida | United States |
| 2009 | P31 | Comino | Malta |
| 2009 | HMAS Canberra | Barwon Heads, Victoria | Australia |
| 2011 | USS Kittiwake (ASR-13) | West Bay, Grand Cayman | Cayman Islands |
| 2011 | HMAS Adelaide | Avoca Beach, New South Wales | Australia |
| 2011 | HTMS Prab (LCI-741) | Chumphon | Thailand |
| 2011 | HTMS Sattakut (LCI-742) | Koh Tao | Thailand |
| 2011 | USS Arthur W. Radford | Cape May, New Jersey | United States |
| 2012 | USCGC Mohawk | Lee County, Florida | United States |
| 2012 | HTMS Mataphon (LCT-761) | Ko Larn | Thailand |
| 2012 | HTMS Phetra (LCT-764) | Ko Man Nok | Thailand |
| 2012 | NRP Oliveira e Carmo (F489) | Algarve | Portugal |
| 2012 | NRP Zambeze (P1147) | Algarve | Portugal |
| 2012 | HTMS Chang, formerly USS Lincoln County | Ko Chang | Thailand |
| 2013 | NRP Hermenegildo Capelo (F481) | Algarve | Portugal |
| 2013 | NRP Almeida Carvalho (A527) | Algarve | Portugal |
| 2013 | T11 Coastal Patrol Ship | Ko Chang | Thailand |
| 2013 | Tug No. 2 | Sliema | Malta |
| 2014 | HTMS Kledkaeo (AKS-861) [citation needed] | Phi Phi Islands | Thailand |
| 2014 | MV Ærøsund [citation needed] | South Fionan Sea | Denmark |
| 2015 | HMCS Annapolis[18] | British Columbia | Canada |
| 2015 | USS Comstock [citation needed] | Checheng Township, Pingtung | Taiwan |
| 2015 | ARM Uribe (P121) | Rosarito Beach, Baja California | Mexico |
| 2016 | General Pereira D´Eça F477[19][20] | Porto Santo, Madeira | Portugal |
| 2016 | Vis | Kamenjak, Istra | Croatia |
| 2017 | USCGC Tamaroa (WMEC-166) | Cape May, New Jersey | United States |
| 2017 | Fishing Trawler, Gal'Oz | Hertzliya, Israel | Israel |
| 2018 | HMAS Tobruk (L 50) | Queensland | Australia |
| 2021 | P33[21] | Marsaskala | Malta |
| 2022 | MT Hephaestus[22] | Xatt l-Aħmar | Malta |
| 2023 | NRTL Kamenassa (P217)[23] | K41 | East Timor |
See also
[edit]- Artificial Reef Society of British Columbia – Canadian non-profit to create artificial reefs for habitat enhancement and recreation
- Rigs-to-Reefs – Program for converting decommissioned offshore oil and petroleum rigs into artificial reefs
- Archaeology of shipwrecks – Study of human activity through the analysis of shipwreck artifacts
- Diver training – Processes to develop the skills and knowledge to dive safely underwater
- Environmental impact of recreational diving – Effects of scuba diving on the underwater environment
- Lists of shipwrecks – Index to Wikipedia's lists of shipwrecks
- List of wreck diving sites – List of shipwreck sites which are popular amongst scuba divers for wreck diving.
- Scuba diving tourism – Industry based on recreational diver travel
- Wreck Alley – Area off California with several wrecks sunk as artificial reefs
- Wreck diving – Recreational diving on wrecks
References
[edit]- ^ Edney, Joanne (November 2006). "Impacts of Recreational Scuba Diving on Shipwrecks in Australia and the Pacific - A Review". Micronesian Journal of the Humanities and Social Sciences. 5 (1/2 Combined). Albury NSW, Australia: Heritage Futures International. ISSN 1449-7336. Archived from the original on 2021-02-25. Retrieved 2020-03-17.
- ^ "The Cayman Islands Shipwreck Expo Directory Capt. Dan Berg's Guide to Shipwrecks information". Aquaexplorers.com. Archived from the original on 2010-09-22. Retrieved 2010-08-20.
- ^ The Bombing of the Rainbow Warrior
- ^ a b Williams, Chris; Bowen, Linda (2008). "Wrecks of the Duane and Bibb" (PDF). Advanced Diver Magazine Ezine (1, reprinted from ADM issue 4): 62–72. Archived (PDF) from the original on 2010-09-16. Retrieved 2009-06-04.
- ^ a b c d e f g h "ARSBC". Artificial Reef Society of British Columbia. Archived from the original on 2010-08-05. Retrieved 2010-08-20.
- ^ "Cooper Island". Dive BVI. Archived from the original on 2009-09-25. Retrieved 2010-08-20.
- ^ a b c d e "Diving the wrecks off Malta and Gozo's Coastline". Paradise Diving Malta. Archived from the original on 2012-09-21. Retrieved 2012-09-04.
- ^ "BVI Dive Site: Wreck of the Inganess Bay". Bvidiving.com. Archived from the original on 2011-07-08. Retrieved 2010-08-20.
- ^ "HMAS Swan (III) - Royal Australian Navy". Navy.gov.au. Archived from the original on 2012-11-04. Retrieved 2010-08-20.
- ^ "Top wrecks of Malta & Gozo". John Liddiard. Archived from the original on 2012-10-19. Retrieved 2012-09-04.
- ^ "MV Imperial Eagle & Kristu l-Bahhar". Subway Dive Centre. Archived from the original on 2014-10-26. Retrieved 2012-09-04.
- ^ "HMAS Perth (II) - Royal Australian Navy". Navy.gov.au. Archived from the original on 2012-11-04. Retrieved 2010-08-20.
- ^ "The Spiegel Grove is believed to be the largest ever wreck deliberately sunk as a diving site". Fla-keys.com. Archived from the original on 2010-08-30. Retrieved 2010-08-20.
- ^ "5 Star PADI IDC Centre, Kenya, Zanzibar". Buccaneer Diving. Archived from the original on 10 June 2015. Retrieved 2010-08-20.
- ^ "Charlie Brown Artificial Reef". Golden Rock Dive Center. Archived from the original on 2011-07-11. Retrieved 2011-06-07.
- ^ "Hebat Allah". Red Sea Wreck Project. 19 August 2013. Archived from the original on 21 March 2017. Retrieved 21 March 2017.
- ^ "Vandenberg sinking this morning". MSNBC. Associated Press. 2009-05-27. Retrieved 2009-05-28.[dead link]
- ^ "HMCS Annapolis sunk to make artificial reef". CBC News. 4 April 2015. Retrieved 5 April 2015.
- ^ "Cordeca". www.portugaldive.com. Archived from the original on 10 March 2020. Retrieved 17 March 2020.
- ^ "NRP General Pereira d'Eca F477". www.shipspotting.com. Retrieved 17 March 2020.
- ^ Montebello, Edward (31 July 2021). "Ara l-mument tal-għarqa tal-P33 fil-ponta taż-Żonqor". One News (in Maltese). Archived from the original on 31 July 2021.
- ^ "Watch: Tanker that ran aground off Qawra starts new life as a diving attraction". Times of Malta. 29 August 2022. Archived from the original on 31 August 2022. Retrieved 15 January 2023.
- ^ "Timor Leste's Newest Shipwreck". Dive Timor Lorosae. 18 July 2023. Archived from the original on 24 September 2023. Retrieved 13 September 2023.
