Tidal island

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Diagram of tidal island at low tide and high tide
St Michael's Mount, Cornwall, at high tide, c. 1900
Cramond Island, Scotland, at high tide: the causeway is submerged, but the anti-boat pylons are still visible.

A tidal island is a piece of land that is connected to the mainland by a natural or man-made causeway that is exposed at low tide and submerged at high tide. Because of the mystique surrounding tidal islands many of them have been sites of religious worship, such as Mont Saint-Michel with its Benedictine Abbey. Tidal islands are also commonly the sites of fortresses because of their natural fortifications.

List of tidal islands[edit]

Asia[edit]

Hong Kong[edit]

Iran[edit]

South Korea[edit]

Europe[edit]

Channel Islands[edit]

Denmark[edit]

France[edit]

Germany/Denmark[edit]

Ireland[edit]

Iceland[edit]

Grótta in Seltjarnarnes in Capital Region

Spain[edit]

United Kingdom[edit]

Worm's Head at the end of Gower, Wales
England[edit]
Northern Ireland[edit]
Scotland[edit]
Wales[edit]

43 (unbridged) tidal islands can be walked to from the UK mainland.[1]

North America[edit]

Canada[edit]

United States[edit]

Bar Island in Maine, U.S.

Australasia[edit]

Australia[edit]

New Zealand[edit]

Rangitoto Island forms a backdrop to a wave-cut platform off Achilles Point, Auckland, New Zealand.

See also[edit]

References[edit]

  1. ^ Peter Caton (2011). No Boat Required – Exploring Tidal Islands. ISBN 978-1848767-010. 
  2. ^ longpointisland.com