Helliar Holm is an uninhabited island off the coast of Shapinsay

Shapinsay

Shapinsay is one of the Orkney Islands off the north coast of mainland Scotland. There is one village on the island, Balfour, from which roll-on/roll-off car ferries sail to Kirkwall on the Orkney Mainland...

 in the Orkney Islands, Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

. It is home to a 42 feet (12.8 m) lighthouse, which was built in 1893 and automated in 1967. It is a tidal island connected to Shapinsay, and lies between it and the mainland.

The island also has the ruins of a broch

Broch

A broch is an Iron Age drystone hollow-walled structure of a type found only in Scotland. Brochs include some of the most sophisticated examples of drystone architecture ever created, and belong to the classification "complex Atlantic Roundhouse" devised by Scottish archaeologists in the 1980s....

, cairn

Cairn

Cairn is a term used mainly in the English-speaking world for a man-made pile of stones. It comes from the or . Cairns are found all over the world in uplands, on moorland, on mountaintops, near waterways and on sea cliffs, and also in barren desert and tundra areas...

 and chapel

Chapel

A chapel is a building used by Christians as a place of fellowship and worship. It may be part of a larger structure or complex, such as a church, college, hospital, palace, prison or funeral home, located on board a military or commercial ship, or it may be an entirely free-standing building,...

.

In the Orkneyinga Saga

Orkneyinga saga

The Orkneyinga saga is a historical narrative of the history of the Orkney Islands, from their capture by the Norwegian king in the ninth century onwards until about 1200...

it is referred to as both "Hellisey" and "Eller Holm" and John of Fordun

John of Fordun

John of Fordun was a Scottish chronicler. It is generally stated that he was born at Fordoun, Mearns. It is certain that he was a secular priest, and that he composed his history in the latter part of the 14th century; and it is probable that he was a chaplain in the St Machar's Cathedral of...

refers to it as "Helene-holm"