At two in the morning on the 30th of May 1906, a thirteen-thousand-ton battleship of the Royal Navy ran herself onto Shutter Rock on the south-west tip of Lundy Island. Her name was HMS Montagu. She had four twelve-inch guns, an armoured belt seven inches thick, and a top speed of nineteen knots, which made her one of the fastest battleships in the world. None of it helped. A pilot cutter had warned her — politely, then urgently — that she was steering directly onto Shutter Rock. The bridge of Montagu had argued with the cutter, told them their bearings must be wrong, and steamed ahead. Ten minutes later the fog carried the sound of one of the Royal Navy's newest battleships hitting the rocks at full speed.
Montagu was a Duncan-class pre-dreadnought, ordered in response to a perceived Russian threat. In 1898 Russia had launched the Peresvet class — fast second-class battleships, designed to outrun heavier ships. The British answer, designed by William Henry White, was to sacrifice armour for speed. The Duncan class displaced just over thirteen thousand tons but could make nineteen knots — fast enough to catch the Russians and just heavy enough to fight them. The trade-off was real. The Duncans had thinner armour than first-class British battleships, and naval critics knew it. They were never a popular design. But for several years they were the fastest battleships in the world, which mattered, briefly, until the all-big-gun Dreadnought arrived in 1906 and made them — and every other pre-dreadnought afloat — obsolete in a single afternoon. Montagu's career was three years long. The Dreadnought was launched three months before Montagu hit the rocks.
What Montagu was doing in the Bristol Channel that May was testing wireless telegraphy — at the time, the cutting edge of naval communication. She had anchored off Lundy on the 29th to send and receive test messages with shore stations. The signals were weaker than expected. The decision was made to steam to the Isles of Scilly to try again from there. Heavy fog rolled in. Four hours into the run southwest, the navigator turned the ship around to return to Lundy, but his dead-reckoning was wrong — Montagu was two miles off her planned track without knowing it. A pilot cutter materialised out of the fog and Montagu came alongside to ask for a bearing to Hartland Point on the mainland. The pilot gave it accurately. The voice from Montagu's bridge replied that the pilots must be wrong, that the cutter had lost its own bearings. The bridge ordered ahead. The cutter shouted after them: on this course they would hit Shutter Rock in ten minutes. The fog swallowed Montagu before anyone could argue further.
She struck at 02:00, tearing a ninety-one-foot gash along her starboard side. Within twenty-four hours her starboard engine room and all her boiler rooms had flooded. Her crew counter-flooded the port engine room to stop her from rolling over. The whole crew of seven hundred and twenty officers and ratings survived, which is the small grace in this story — no one died, which made it possible to treat the loss as a salvage problem rather than a tragedy. The salvage problem proved unsolvable. Twenty pumps were assembled with a combined capacity of eight thousand six hundred tons of water per hour. The hull was too holed to seal. Caissons were built and ripped away by mild seas. A high-power air pump was tried; nothing worked. Her sister ship Duncan ran aground attempting to help, then was refloated herself. By October it was clear the sea was driving Montagu harder onto the rock and warping her hull beyond repair. The Navy gave up.
The court martial was held aboard another ship in the fleet. The verdict laid the wreck to the thick fog and faulty navigation. The captain, Thomas Adair, and the navigation officer, Lieutenant James Dathan, were both severely reprimanded and dismissed from Montagu. Dathan lost two years of seniority in rank. Adair never commanded again. Neither man's career, judged by the standards of the Edwardian Royal Navy, fully recovered. What made the case so painful for the service was that the warning had come, that someone on the bridge had heard it, and that someone had decided that a tradesman in a small boat could not possibly know better than a battleship's navigator. The pilot cutter had been right. Montagu had been wrong. The fog made the immediate cause; the bridge made the underlying one.
The Western Marine Salvage Company of Penzance broke up the hull over the next fifteen years. The main battery guns were removed and reused in other ships. Most of the metal eventually came off Lundy in barge-loads. What is left now is some armour plate scattered across the seabed at the foot of Shutter Rock, fragments of gun turrets, and unexploded shells the salvors never recovered. The site is a popular dive — protected, since September 2019, as a scheduled monument, which means even the steps that the salvors chiselled into the cliff to reach the wreck are now historic in their own right. The pilot cutter's name has been lost to record. The men on her bridge that morning, who told the Royal Navy where they were and were not believed, are anonymous. Their warning is the loudest thing left in the story.
The wreck site lies off Shutter Rock on the south-west tip of Lundy at approximately 51.16 degrees north, 4.67 degrees west. Recommended viewing altitude is 1,500 to 2,500 feet on a clear day. Lundy itself is unmistakable from the air — a granite slab three miles long lying north-south in the middle of the Bristol Channel, with two active lighthouses at its north and south ends. Shutter Rock is the cluster of fanged stacks at the southern tip. Hartland Point lighthouse on the Devon mainland is eleven miles to the southeast. Newquay (EGHQ) is roughly 50 nautical miles south. Bristol airport is northeast. The Bristol Channel produces fog with disconcerting speed in late spring and early summer — Montagu's fog was a May fog, and the same conditions still develop annually. Expect sudden visibility changes on approach.