Orkney, also known as the Orkney Islands, is an archipelago in the Northern Isles of Scotland, situated off the north coast of the island of Great Britain. Orkney is 10 miles (16 km) north of the coast of Caithness and has about 70 islands, of which 20 are inhabited. The largest island, the Mainland, has an area of 523 square kilometres (202 sq mi), making it the sixth-largest Scottish island and the tenth-largest island in the British Isles. Orkney's largest settlement, and also its administrative centre, is Kirkwall.
Hoy is an island in Orkney, Scotland, measuring 143 square kilometres (55 sq mi) – the second largest in the archipelago, after Mainland. A natural causeway, the Ayre, links the island to the smaller South Walls; the two islands are treated as one entity by the UK census.
Scapa Flow is a body of water in the Orkney Islands, Scotland, sheltered by the islands of Mainland, Graemsay, Burray, South Ronaldsay and Hoy. Its sheltered waters have played an important role in travel, trade and conflict throughout the centuries. Vikings anchored their longships in Scapa Flow more than a thousand years ago. It was the United Kingdom's chief naval base during the First and Second World wars, but the facility was closed in 1956.
The Mainland, also known as Hrossey and Pomona, is the main island of Orkney, Scotland. Both of Orkney's burghs, Kirkwall and Stromness, lie on the island, which is also the heart of Orkney's ferry and air connections.
Flotta is a small island in Orkney, Scotland, lying in Scapa Flow. The island is known for its large oil terminal and is linked by Orkney Ferries to Houton on the Orkney Mainland, Lyness on Hoy and Longhope on South Walls. The island has a population of 80.
South Ronaldsay is one of the Orkney Islands off the north coast of Scotland. It is linked to the Orkney Mainland by the Churchill Barriers, running via Burray, Glimps Holm and Lamb Holm.
Burray is one of the Orkney Islands in Scotland. It lies to the east of Scapa Flow and is one of a chain of islands linked by the Churchill Barriers.
Lamb Holm is a small uninhabited island in Orkney, Scotland. The Italian Chapel, constructed during the Second World War, is the island's main attraction.
Graemsay is an island in the western approaches to Scapa Flow, in the Orkney Islands of Scotland. The island has two lighthouses. Graemsay lies within the parish of Stromness.
The Italian Chapel is a highly ornate Catholic chapel on Lamb Holm in the Orkney Islands. It was built during World War II by Italian prisoners of war, who were housed on the previously uninhabited island while they constructed the Churchill Barriers to the east of Scapa Flow. Only the concrete foundations of the other buildings of the prisoner-of-war camp survive. The chapel was not completed until after the end of the war, and was restored in the 1960s and again in the 1990s. It is a popular tourist attraction, and a category A listed building.
A mole is a massive structure, usually of stone, used as a pier, breakwater, or a causeway separating two bodies of water. A mole may have a wooden structure built on top of it that resembles a wooden pier. The defining feature of a mole, however, is that water cannot freely flow underneath it, unlike a true pier. The oldest known mole is at Wadi al-Jarf, an ancient Egyptian harbor complex on the Red Sea, constructed ca. 2500 BCE.
The Churchill Barriers are four causeways in the Orkney islands with a total length of 2.3 kilometres (1.4 mi). They link the Orkney Mainland in the north to the island of South Ronaldsay via Burray and the two smaller islands of Lamb Holm and Glimps Holm.
Hunda is an uninhabited island in the Orkney archipelago in Scotland. It is 100 hectares (0.39 sq mi) in extent and rises to 42 metres (138 ft) above sea level. It is situated in Scapa Flow and connected to the nearby island of Burray by a causeway built in 1941 to stop passage of small surface craft as part of the boom defences, and thence to the Orkney Mainland via the Churchill Barriers.
The A961 is a single-carriageway road on the eastern side of Scapa Flow in the Orkney Islands, connecting the town of Kirkwall on the Orkney Mainland to Burwick at the southern end of South Ronaldsay.
Holm, also spelled Ham, is a parish on Mainland, Orkney.
Inner Holm is a small inhabited island in Stromness harbour and one of the Orkney islands of Scotland.
Coastal fortifications in Scotland played a vital role during the World Wars, protecting shipping as they mustered to convoy. New fortifications were built and old defences were also rebuilt or strengthened around the Scottish coast in case of invasion. New technologies like Radar were also deployed.
