Tidal island
Diagram of tidal island at low tide and high tide
Cramond Island, Scotland, at high tide: the causeway is submerged, but the anti-submarine pylons are still visible.
"Tide island" redirects here. It is not to be confused with Tied island.
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
Asia
Hong Kong
- Ma Shi Chau in Tai Po District, northeastern New Territories, within the Tolo Harbour
Iran
- Naaz islands in Persian gulf, southern seashore of Qeshm island
South Korea
- Jindo Island and Modo Island in southwest South Korea
Europe
Channel Islands
- Lihou in Guernsey, one of the Channel Islands
Denmark
- Mandø Island – on Denmark's western coast
- Knudshoved Island – north of Vordingborg on southern Zealand, Denmark
France
- Île Madame in Charente-Maritime
- Île de Noirmoutier in Vendée
- Mont Saint-Michel in Normandy
- Tombelaine in Normandy
Germany/Denmark
- The Halligen in the North Frisian Islands, Germany/Denmark
- The Neuwerk in the Wadden Sea, Germany
Ireland
- Coney Island near Rosses Point, County Sligo
- Omey Island in Connemara, County Galway, Connacht
- Inishkeel, County Galway, Connacht
Spain
- Cortegada Island in Pontevedra coast, Galicia.
- San Nikolas Island in Lekeitio, Bizkaia
United Kingdom
Rough Island opposite Rockcliffe, Dumfries & Galloway, Scotland
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Worm's Head at the end of Gower, Wales
- Asparagus Island in Cornwall, England
- Baleshare in the Outer Hebrides, Scotland
- Brough of Birsay in Orkney, Scotland
- Burgh Island in Devon, England
- Burrow Island in Portsmouth Harbour, England
- Burry Holms on the Gower, Wales
- Castle Stalker on Loch Laich in Argyll, Scotland
- Chapel Island in Cumbria, England
- Chiswick Eyot in the River Thames
- Cramond Island in the Firth of Forth, Scotland
- Davaar Island near Campbeltown, on the Kintyre peninsula, Scotland
- Eilean Shona in Loch Moidart, Scotland
- Eilean Tioram, in Loch Moidart, Lochaber, Highland, Scotland on which is situated Castle Tioram
- Erraid off the Isle of Mull in Scotland
- Gateholm off the south west coast of Pembrokeshire, Wales
- Gugh in the Isles of Scilly, Great Britain
- Hestan Island near Rough Island, Scotland in Auchencairn Bay, Scotland
- Hilbre Island, Middle Eye and Little Eye in the River Dee estuary, between North Wales and the English Wirral
- Horsey Island in Essex, England
- Islands of Fleet: Ardwall Isle & Barlocco Isle in Galloway, Scotland
- Isle Ristol, the innermost of the Summer Isles in Scotland
- Kili Holm in Orkney, Scotland
- Lindisfarne in Northumberland, England
- Ynys Llanddwyn off Anglesey in north Wales
- Mersea Island in Essex, England
- Mumbles Lighthouse located in Mumbles, near Swansea
- Northey Island in Essex, England
- Oronsay in the Inner Hebrides, Scotland
- Osea Island in Essex, England
- Piel Island in Cumbria, England
- Ray Island in Essex, England
- Rough Island opposite Rockcliffe, Dumfries & Galloway, Scotland
- Sheep Island in Cumbria, England
- St Catherine's Island in Pembrokeshire, Wales
- St Mary's Island in North Tyneside, England
- St Michael's Mount in Cornwall, Great Britain
- Sully Island in the Vale of Glamorgan, Wales
- Worm's Head at the end of Gower, Wales
- Ynys Gifftan in Gwynedd, north Wales
- Ynys Lochtyn on the coast of Cardigan Bay, Wales
43 (unbridged) tidal islands can be walked to from the UK mainland.[1]
North America
Canada
- Micou's Island in St. Margarets Bay, Nova Scotia, Canada
- Minister's Island in New Brunswick, Canada
United States
Bar Island in Maine, U.S.
- Bar Island in Maine
- Battery Point Light in California
- Bumpkin Island in Massachusetts
- Camano Island in Puget Sound of Washington State, since earth filled
- Cana Island Lighthouse in Wisconsin
- Charles Island, in Connecticut
- Douglas Island in Alaska
- High Island, New York
- Long Point Island,[2] Harpswell, Maine
Australasia
Australia
- The Point Walter Sandbar in Perth, Western Australia has slowly formed into a tidal island and is only connected to the mainland in extreme low tides.
- Penguin Island (Western Australia) in the Shoalwater Islands Marine Park
- Former tidal island Bennelong Island in Sydney, Australia was developed into Bennelong Point and is now the location of the Sydney Opera House.
New Zealand
- Matakana Island in Tauranga Harbour
- Opahekeheke Island in the Kaipara Harbour
- Puddingstone Island in Otago Harbour
- Rabbit Island, Bells Island, and Bests Island in Tasman Bay
- The Hauraki Gulf islands of Motutapu Island and Rangitoto Island are connected at low tide
- The Okatakata Islands and Walker Island in Rangaunu Harbour
See also
References
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Wikimedia Commons has media related to Tidal islands. |
- ↑ Peter Caton (2011). No Boat Required – Exploring Tidal Islands. ISBN 978-1848767-010.
- ↑ longpointisland.com
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