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Limestone pavement – Natural karst landform consisting of a flat, incised surface of exposed limestone. Mesa – Elevated area of land with a flat top and sides, usually much wider than buttes. Mushroom rock – Naturally occurring rock whose shape resembles a mushroom. Natural arch – Arch-shaped natural rock formation.
The Doom Bar at low tide, with the river channel on the far side. The Doom Bar is a sandbar at the mouth of the Camel estuary on the north coast of Cornwall. The bar is composed mostly of coarse sediment carried up from the seabed by bed load processes, and it has been shown that there is a net inflow of sediment into the estuary. [2]
A bore in Morecambe Bay, in the United Kingdom Video of the Arnside Bore, in the United Kingdom The tidal bore in Upper Cook Inlet, in Alaska. A tidal bore, [1] often simply given as bore in context, is a tidal phenomenon in which the leading edge of the incoming tide forms a wave (or waves) of water that travels up a river or narrow bay, reversing the direction of the river or bay's current.
Bay of Fundy. Likely from the French Fendu, meaning "split". The Bay of Fundy (French: Baie de Fundy) is a bay between the Canadian provinces of New Brunswick and Nova Scotia, with a small portion touching the U.S. state of Maine. It is an arm of the Gulf of Maine. Its tidal range is the highest in the world. [1]
The cave's entrance at low tide General view. Merlin's Cave is a cave located beneath Tintagel Castle, 5 kilometres (3.1 mi) south-west of Boscastle, Cornwall, England.It is 100 metres (330 ft) long, [1] passing completely through Tintagel Island from Tintagel Haven on the east to West Cove on the west. [2]
Mont-Saint-Michel at low tide The Mont-Saint-Michel in 2014 with the new bridge. The connection between Mont-Saint-Michel and the mainland has changed over the centuries. Previously connected by a tidal causeway uncovered only at low tide, this was converted into a raised causeway in 1879, preventing the tide from scouring the silt around the ...
e. The intertidal zone or foreshore is the area above water level at low tide and underwater at high tide; in other words, it is the part of the littoral zone within the tidal range. This area can include several types of habitats with various species of life, such as sea stars, sea urchins, and many species of coral with regional differences ...
The lagoon is comparatively open, although it is studded with numerous small coral patches or shoals which are awash at low tide. The general depth is from 32 to 42 fathoms (59 to 77 m) and it is mud-bottomed at the centre. South of the atoll lies the deep Veymandoo Kandu channel which separates it from the Hadhdhunmathee Atoll.