Wreck Diving in Cornwall
4 diveable wrecks in Cornwall, United Kingdom. Depths range from 16–35m.
SS Mohegan
The most intensively dived wreck on Cornwall's notorious Manacles reef, the Mohegan's story remains one of British maritime history's enduring puzzles. She was barely six months old when she ploughed onto Vase Rock in October 1898, killing 106 passengers and crew on what should have been a routine Atlantic crossing. No one has ever convincingly explained why the ship was so far off course. Today her boilers rise from 22 metres as the centrepiece of a richly colonised underwater landscape, while the skeletal hull frames create a striking grid that draws photographers from across the UK. The site splits naturally into two dives — the boiler section and the bow area — and the surrounding reef teems with life that makes any bottom time spent waiting for slack water utterly worthwhile.
SS Torrey Canyon
No shipwreck in British waters had a greater impact on environmental policy than the Torrey Canyon. When this Liberian-flagged supertanker struck Pollard's Rock on the Seven Stones reef in March 1967, she released roughly 120,000 tons of crude oil into the sea — the worst spill the UK had ever seen. The government's desperate response included RAF bombing runs with napalm to incinerate the remaining cargo, an operation watched by millions on television. The disaster rewrote international maritime law and birthed the modern framework for oil pollution response. Diving the remains demands expedition-level planning: Seven Stones lies fifteen miles west of Land's End in open Atlantic, where settled weather windows are rare and brief. Those who reach the scattered wreckage find it spread across a reef alive with marine growth, the steel slowly yielding to the ocean that made the Torrey Canyon a household name.
SS Volnay
If there is a gateway wreck on the Lizard Peninsula, the Volnay is it. Nearly every visiting dive club makes her their first target, and for good reason — she sits at a forgiving 18 to 22 metres with enough structure to keep things interesting without demanding heroics. A German mine from UC-64 ended her war service in December 1917 while she carried Canadian ammunition south past the Manacles. Her two great boilers now anchor the site, rising from silty sand that conceals wooden ammunition boxes, scattered bollards, and chain. Pink sea fans have colonised the higher wreckage, adding unexpected colour to a scene that might otherwise be all rust and silt. The combination of accessible depth, reliable marine life, and a genuine wartime story makes the Volnay the wreck that hooks new divers on the Lizard.
Spyridion Vagliano
A Greek steamer laden with Black Sea grain, the Spyridion Vagliano met the same fate as so many vessels on the Manacles — a navigational miscalculation that put her squarely onto Maen Voes on a February night in 1890. Fourteen of her twenty-two crew were lost to the freezing water. She now lies close to the more famous Mohegan, reachable by following a south-west compass bearing from that wreck down to around 18 metres. What sets her apart is the boiler: with its outer casing long since rotted away, the internal tube structure is exposed in unusual detail, offering a cross-section lesson in Victorian marine engineering. In summer the wreckage disappears under dense kelp, so spring and autumn visits tend to reward with clearer views. The site makes a natural second dive when paired with the Mohegan on a Manacles boat trip.