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Tidal island

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Title: Tidal island  
Author: World Heritage Encyclopedia
Language: English
Subject: Omey Island, Burgh Island, Islet, Ramsey Island, Shore
Collection: Islands, Tidal Islands, Tides
Publisher: World Heritage Encyclopedia

Tidal island

A diagram of a tidal island at low and high tide.
Cramond Island seen from the air. The causeway is completely submerged at high tide

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 1
    • Asia 1.1
      • Hong Kong 1.1.1
      • South Korea 1.1.2
    • Europe 1.2
      • Channel Islands 1.2.1
      • Denmark 1.2.2
      • France 1.2.3
      • Germany/Denmark 1.2.4
      • Ireland 1.2.5
      • Spain 1.2.6
      • United Kingdom 1.2.7
    • North America 1.3
      • Canada 1.3.1
      • United States 1.3.2
    • Australasia 1.4
      • Australia 1.4.1
      • New Zealand 1.4.2
  • See also 2
  • References 3

List of tidal islands


Hong Kong

South Korea


Channel Islands






United Kingdom

Worm's Head at the end of Gower, Wales

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

North America


United States

Bar Island in Maine, U.S.



New Zealand

Rangitoto Island forms a backdrop to the wave-cut platform off Achilles Point, Auckland

See also


  1. ^ Peter Caton (2011). No Boat Required – Exploring Tidal Islands.  
  2. ^
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