At low tide the limpet (being a strictly intertidal organism) is exposed to the air, and (according to trustworthy observers) quits its attachment and walks away in search of food (minute encrusting algae), and then once more returns to the identical spot, not an inch in diameter, which belongs, as it were, to it.
avocet on the intertidal sand at Glyne Gap Beach.
Survey of chalk cave, cliff, intertidal and subtidal reef biotopes in the Thanet coast cSAC.
Intertidal and subtidal sediment biotopes may cover very extensive areas of shore or seabed.
Yield of fine sand from erosion of the Eocene cliffs has created a wide sandy intertidal foreshore.