A cave or cavern is a natural underground space large enough for a human to enter. Caves form naturally by the weathering of rock and they often extend deep underground. The word "cave" can also refer to much smaller openings such as sea caves, rock shelters, and grottos.
Speleology is the science of exploration and study of all aspects of caves and the environment that surrounds the caves. Exploring a cave for recreation or science may be called caving, potholing, or, in Canada and the United States, spelunking (see caving).
Read more about Cave: Types and Formation, Physical Patterns, Geographic Distribution, Records and Superlatives, Ecology, Archaeological and Cultural Importance, Gallery
Famous quotes containing the word cave:
“Mankind which began in a cave and behind a windbreak will end in the disease-soaked ruins of a slum.”
—H.G. (Herbert George)
“The Cave of Jeremiah is in this part. In its lamentable recesses he composed his lamentable Lamentations.”
—Herman Melville (1819–1891)
“Do you know how poetry started? I always think that it started when a cave boy came running back to the cave, through the tall grass, shouting as he ran, “Wolf, wolf,” and there was no wolf. His baboon-like parents, great sticklers for the truth, gave him a hiding, no doubt, but poetry had been born—the tall story had been born in the tall grass.”
—Vladimir Nabokov (1899–1977)