Wreck Diving in Cork
15 diveable wrecks in Cork, Ireland. Depths range from 0–93m.
La Surveillante
Beneath the sheltered waters of Bantry Bay lies one of the most archaeologically significant wrecks in Ireland -- a French frigate scuttled during the failed 1796-97 expedition to support Irish rebellion against British rule. La Surveillante went down on 2 January 1797 after her crew chose scuttling over capture by the Royal Navy. Lost for nearly two centuries, the wreck was identified in 1981 during marine surveys following the Whiddy Island oil terminal disaster, and confirmed in 1997 when the ship's bell was located. Preservation is exceptional: the wreck survives from the orlop deck down to the copper-sheathed keelson, with the entire site contained within just 50 by 25 metres. A nationally protected monument (NMS Wreck Number W08507), diving requires prior permission from authorities.
MV Bardini Reefer
Her masts still break the surface. In the channel between Bere Island and the mainland at Castletownbere, the MV Bardini Reefer sits almost complete in just 15 metres of water -- masts protruding above the waterline, making the wreck impossible to miss. This 3,976 GRT Panamanian factory fishing vessel caught fire while at anchor in Bantry Bay and burned for three days before sinking on 15 December 1982. All crew were rescued by local boats. Gentle currents in the sheltered harbour have encouraged dense marine growth on the superstructure. Divers can explore the periphery and full length of the deck, viewing the boiler room, mast, and funnels. Penetration is possible through some openings. The site deserves at least two dives and is accessible to all levels including freedivers. Visibility varies between 3-5 metres.
MV Kowloon Bridge
At 294 metres long and 169,469 deadweight tonnes, the Kowloon Bridge wreck is one of the largest diveable shipwrecks on the planet. She was a Bridge-class OBO carrier that developed structural cracks in heavy Atlantic weather in November 1986 while carrying 160,000 tonnes of iron ore from Canada. Refused entry to several ports, she broke free from tugs and drifted onto the Stags rocks off Toe Head in West Cork. All 28 crew were helicoptered to safety. The wreckage now sprawls across a wide seabed area from 5 to 34 metres, offering diving for a range of experience levels. Iron ore pellets blanket the site. Marine life is prolific -- seals, large shoals of pollock, conger eels, and dense anemone growth thrive on the scattered hull sections, some of which rise more than 10 metres off the seabed.
RMS Celtic
When she launched in 1901, the RMS Celtic was the biggest ship in the world -- the first vessel in history to exceed 20,000 gross tons, surpassing even the legendary SS Great Eastern. Built by Harland and Wolff in Belfast for the White Star Line as the first of their Big Four quartet, she measured over 700 feet and 20,904 GRT. Her end came ignominiously on 10 December 1928, blown onto rocks at Roches Point while waiting for a harbour pilot at Cobh. Stuck on Cow-and-Calf Rock, wave action caused such structural damage that she was declared a total loss within a week. Sold to Danish firm Petersen and Albeck, she was broken up in situ by 1933. Tragedy struck again in November 1929 when hydrogen sulphide gas from rotting cargo killed four salvage workers. Artifacts found their way into Cork homes. The sparse remaining wreckage at 10-20 metres requires local knowledge to locate.
RMS Lusitania
Eighteen minutes. That's all it took for the Lusitania to disappear beneath the Celtic Sea on 7 May 1915, taking 1,198 souls with her. A single torpedo from U-20, fired eleven miles south of the Old Head of Kinsale, struck the starboard side -- followed by a mysterious second explosion whose cause is still debated. The sinking turned American opinion against Germany and altered the course of World War I. Today the wreck lies on her starboard side at approximately 93 metres, heavily collapsed and continuing to degrade from corrosion and tidal currents. Diving the Lusitania demands advanced trimix certification, deep wreck experience, and permission from Irish authorities. Visibility typically runs 5-8 metres in moderate to strong currents. This is a protected site under Irish law, and the Irish Examiner reported in 2024 that efforts are underway to document and recover artefacts before further collapse.
SM UC-42
The crew of UC-42 were laying mines to destroy other ships when one of their own mines destroyed them. On 10 September 1917, this German UC II-class minelaying submarine was deploying a minefield at the entrance to Cork Harbour off Roches Point when a mine detonated, killing all 27 crew instantly. The wreck was relocated by divers in 2010 in approximately 28-30 metres and subsequently designated a war grave under the National Monuments Acts. She rests on her port side with the keel visible and an external bow torpedo tube lying in the silt beneath. In 2024, divers from Blackwater Sub Aqua Club and Mizen Archaeology recovered one of the propellers after months of careful excavation -- a significant maritime heritage event covered by RTE and the Irish Examiner. A licence under the National Monuments Acts is required to dive this protected site.
SS Alondra
Survivors were lowered down a 45-metre cliff face. When the SS Alondra ran aground on Kedge Rock off Baltimore in dense fog on 29 December 1916, sixteen of her 40 crew drowned taking to a ship's boat. The Baltimore lifeboat launched twice but couldn't reach the vessel. At daylight, rescuers arrived with rocket apparatus and two Royal Navy trawlers. Together they saved 23 men -- Archdeacon Becher and Lieutenant Sanderson each received the RNLI Silver Medal for Gallantry. Built in 1899 for the Rio Tinto Company, the 2,500 GRT steel steamship now offers multiple depth zones from 6 metres (forecastle with anchor winches) down to 46 metres (stern section), with prominent boilers at 20 metres surrounded by hull plating that houses large conger eels. A popular Baltimore dive; strong tides dictate slack water timing.
SS Aud
Captain Karl Spindler chose to scuttle his ship rather than let 20,000 rifles fall into British hands. The SS Aud -- actually the SS Libau, a German vessel disguised as a Norwegian steamer -- was carrying 20,000 rifles, a million rounds of ammunition, and ten machine guns for the planned 1916 Easter Rising. After sailing from Germany around Scotland, she arrived off the Kerry coast on 20 April 1916 but failed to connect with the Irish rebels due to miscommunication. Intercepted by the Royal Navy and escorted into Cork Harbour, Spindler ordered scuttling charges set. The Aud sank on 22 April with her entire weapons cargo. The wreck at approximately 30 metres in Cork Harbour is very broken up, but boilers and thousands of rifle bullets remain visible among the wreckage. One of the most historically significant wrecks in Ireland.
SS City of Chicago
Dense fog and the towering cliffs of the Old Head of Kinsale proved a fatal combination. On 22 June 1892, the Inman Line passenger liner SS City of Chicago -- 132 metres long and approximately 5,200 GRT, built by Charles Connell & Co. in Glasgow -- ran aground at Ringagurteen Point while on passage from New York to Queenstown and Liverpool. All passengers were rescued safely with their baggage, but twelve crew drowned when a rescue boat was swamped. For three days the ship held together against relentless Atlantic pounding before listing and breaking apart. The wreck now lies at approximately 20 metres at the foot of the dramatic Old Head cliffs, offering an accessible and scenic dive near one of Ireland's most famous headlands -- and not far from the resting place of the Lusitania.
SS Iberian
Scattered in a zig-zag pattern across a shelving slope from 6 to 36 metres, the remains of the SS Iberian tell the story of an 1885 grounding that all 53 crew survived. This iron cargo steamship of 2,930 GRT, built in 1867 with compound inverted engines of 350 HP, was carrying cattle from Boston to Liverpool for F. Leyland & Co. when thick fog delivered her onto rocks half a mile south-west of Bird Island in Dunmanus Bay. The captain and crew escaped in four boats -- three landed on Bird Island rocks, the fourth was swept away but later found with everyone alive. The wreck is broken into multiple sections; the iron propeller remains intact at 30-38 metres. Featured in Divernet Wreck Tour No. 42, the site is accessed from Schull or Crookhaven with no significant currents.
SS Inniscarra
Father and son died together. Quartermaster Timothy Buckley of Blarney Street and his son Florence, a trimmer, were both serving aboard the SS Inniscarra when a German submarine torpedoed her on 12 May 1918, ten miles south-east of Ballycotton Island. Their deaths were part of a devastating pattern: in 1918 alone, the City of Cork Steam Packet Company lost the Inniscarra, the Innisfallen, the Imber, and the Serula. By the Armistice, only one ship remained and over 178 employees were dead. Built by Wigham Richardson & Sons Ltd, the Inniscarra carried cargo on the Cork routes. The wreck lies off the Cork coast near Ballycotton.
SS Oswestry
Copper ingots weighing 40 kilograms each -- some are still down there, visible but stubbornly immovable. The SS Oswestry was a 2,419-ton steel steamship wrecked in fog on the north side of Mizen Head on 12 March 1899, carrying cotton, deal, Indian maize, and valuable lead and copper bars worth approximately 250,000 euros in modern terms. Captain Wilson and all 24 crew were saved by locals. The wreck at 15-20 metres is wedged against a towering rock stack 500 metres north of Mizen Head, making it easy to find. Described as one of the most impressive rummage dives imaginable, the site is littered with copper and lead bar cargo debris. Sometimes mistakenly called the Irada, which was actually a different ship wrecked at Mizen Head in 1908. Built in 1888 by E. Withy & Co., West Hartlepool.
SS Sente
Christmas Day 1900. A Japanese crew, a Chinese cook, Scottish officers, and a steam-powered bucket dredger bound for Formosa. The SS Sente had been built at Greenock for the Japanese government at a cost of 20,000 pounds. Just three days out of port, a winter gale in St George's Channel gave her a fatal list to port. Captain Jameson pointed the vessel for shelter at Cork, but she went down off Roches Point. The hull is barely recognisable at 28-30 metres, but all the heavy machinery remains -- massive drive gears, an upturned engine base with gearbox, dredger buckets, bevelled gears, and propeller shaft sections. The wreckage piles up at a high point rising 4 metres above the seabed. Featured in Divernet Wreck Tour No. 178. Accessible from Crosshaven, with slack water diving recommended.
The Nellie
Curious blennies watch you from every crevice. The Nellie was a Dutch trawler that foundered at the Sovereign Islands near Kinsale in the 1960s -- reports on how she was lost are conflicting, with one account blaming a storm on the Liverpool-to-Cork run and another claiming no lives were lost. What's not in dispute is the charm of this dive. At approximately 15 metres on the south side of Big Sovereign island, tilted decks and rusting masts sit in turquoise waters teeming with marine life. Suitable for all grades of diver, this is a lovely wreck to potter around on a short boat trip from Kinsale. The anchor was raised by local divers and now stands at the top of the slip in Oysterhaven, serving as both memorial and a warning to seafarers approaching the rocks.
U-260
At 43 metres on a rocky seabed near Baltimore, a German U-boat sits almost perfectly intact -- torpedoes still loaded in their tubes, the periscope glass unbroken, the Walter snorkel standing upright after eight decades on the bottom. U-260 was a Type VIIC submarine that struck a British mine approximately 32 kilometres south of the Fastnet Rock on 12 March 1945. The entire crew survived and were interned in Ireland for the rest of the war. Apart from mine damage to the bow, the hull is remarkably preserved. Open hatches allow limited penetration. The conning tower, twin bronze propellers, and DF aerial all remain in place. Visibility ranges from 5 to 10 metres. For advanced divers visiting Baltimore, West Cork, this is an unmissable dive -- compact enough to navigate the entire submarine in a single outing.