Скачать или смотреть A Dangerous Mysterious Cave in The Hill. পাহাড়েব় এক রহস্যময় গুহা।

A cave may be a hollow place within the ground,[1][2] specifically a natural underground area giant enough for a personality's to enter. Caves type naturally by the weathering of rock and infrequently extend deep underground. The word cave also can confer with a lot of smaller openings like ocean caves, rock shelters, and grottos, although properly speaking a cave is exogene, that means it's deeper than its gap is wide,[3] and a rock shelter is endogene.[4] A cavern may be a specific variety of cave, naturally shaped in soluble rock with the flexibility to grow speleothems.[5]

Speleology is that the science of exploration and study of all aspects of caves and therefore the cave surroundings. Visiting or exploring caves for recreation is also referred to as caving,