# Clestrain Sound

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**Clestrain Sound** is a [strait](/source/Strait) between [Mainland Orkney](/source/Mainland_Orkney) and the [Isle](/source/Island) of [Graemsay](/source/Graemsay) within the [Orkney Islands](/source/Orkney_Islands), [Scotland](/source/Scotland).[1]

Clestrain Sound lies in the western entrance to [Scapa Flow](/source/Scapa_Flow). Like other [seaways](/source/Sound_(geography)) within the [Orkney Islands](/source/Orkney_Islands), Clestrain Sound has been recognized for many years to be warmed by the [North Atlantic Drift](/source/North_Atlantic_Current) current.[2]

## See also

- [Mill of Ayreland](/source/Mill_of_Ayreland)
- [Burn of Ayreland](/source/Burn_of_Ayreland)

## References

1. United Kingdom Ordnance Survey Map Landranger 6, Orkney Mainland, 1:50,000 scale, 2003

1. J. Gunn, *Orkney, the Magnetic North*, Thomas Nelson and Sons, Edinburgh (1932)

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Adapted from the Wikipedia article [Clestrain Sound](https://en.wikipedia.org/wiki/Clestrain_Sound) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Clestrain_Sound?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.