page_title: Holy Loch
section_title: World War II
hierarchical_section_title: Holy Loch / History / Modern history / World War II
caption_attribution_description: English: IWM caption&#160;: HMS GRAPH (ex U-Boat U 570) at Holy Loch on the completion of a trial trip, passing by a depot ship. In the foreground are the conning towers of HMS STURGEON (left) and HMS TIGRIS whilst submarine P 42 (later renamed HMS UNBROKEN) can be seen in the background.
context_page_description: The Holy Loch is a sea loch, a part of the Cowal peninsula coast of the Firth of Clyde, in Argyll and Bute, Scotland.
  The "Holy Loch" name is believed to date from the 6th century, when Saint Munn landed there after leaving Ireland. Kilmun Parish Church and Argyll Mausoleum is said to stand where Saint Munn's church was once located.
  Robertson's Yard at Sandbank, a village on the loch, was a major wooden boat building company in the late 19th and early 20th centuries.
  During World War II, the loch was used as a British Royal Navy submarine base. From 1961 to 1992, it was used as a United States Navy ballistic missile submarine base. In 1992, the Holy Loch base was deemed unnecessary following the demise of the Soviet Union and subsequently closed.
context_section_description: During World War II the loch was used by the Royal Navy as a submarine base, served by the depot ship HMS Forth. The loch was used extensively for trials and exercises by Royal Navy submarines during the war, the submarines HMS Vandal (P64) and HMS Untamed (P58)  were lost in the Clyde after being sunk by accidents during exercises. Untamed was later salvaged.
  Near the Holy Loch an anti-submarine boom was constructed between Dunoon and the Cloch Point Lighthouse to defend waters from German U-boats.
caption: HMS Graph, HMS Sturgeon, HMS Tigris, P 42 at Holy Loch WWII
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