Do all mountains have caves?

No, only mountains made out of the right sort of rock, and subject to the right conditions. Nearly all caves are in limestone, so mountains made out of granite, basalt, schist, sandstone, dolomite, conglomerates, slate, chalk etc, usually do not have caves. However it's not quite that simple. read more

No, only mountains made out of the right sort of rock, and subject to the right conditions. Nearly all caves are in limestone, so mountains made out of granite, basalt, schist, sandstone, dolomite, conglomerates, slate, chalk etc, usually do not have caves. However it’s not quite that simple. read more

Tropical caves In tropical environments, all caves have similar characteristics. They are often arranged in vast underground systems, generally with a prevalently horizontal development, often drained by veritable underground rivers, and cave passages are very large and rich with speleothemes. read more

Suppose you have an area that meets the above condition, but there is one more thing. The sound waves must not get absorbed by the surroundings if that happens you won't be able to hear the echo. But if you take care and have an enclosed area where sound won't be absorbed, then you'll hear an echo. read more