page_title: Monach Islands
section_title: Geology and geography
hierarchical_section_title: Monach Islands / Geology and geography
caption_attribution_description: en.wikipedia.org/wiki/Monach_Islands
context_page_description: The Monach Islands, also known as Heisker, are an island group west of North Uist in the Outer Hebrides of Scotland. The islands are not to be confused with Hyskeir in the Inner Hebrides, or Haskeir which is also off North Uist and visible from the group.
context_section_description: The main islands of Ceann Ear (once home to a nunnery), Ceann Iar and Shivinish (Sibhinis) are all linked at low tide.  It has been claimed that it was at one time possible to walk all the way to Baleshare, and on to North Uist, five miles away at low tide. In the 17th century, a large tidal wave is said to have washed this route away. The islands of the group tend to be low-lying and sandy, subject to intense coastal erosion. Not unlike the Isles of Scilly it is possible that Ceann Iar, Shivinish and Ceann Ear formed a single body of land within historic times, and that their land area has greatly decreased due to overgrazing, sea inundation, and wind erosion.
  Smaller islands in the group include Deasker (Deas-Sgeir), Shillay (Siolaigh) and Stocaigh (or Stockay).
caption: Shivinish, the middle of the three main Monach Islands
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