What’s a cave?
A cave is a subterranean cavity or hole whit total darkness. This holes can be natural, done by nature, or artificial, made by man (most frequently, mines, tunnels). From a human point of view, we define caves and caverns as a place we can enter to explore. In Costa Rica, “cueva” usually is a small cave, “caverna” (cavern) is a cavern, horizontal cave and “pozo” or “sima” means it goes down (pit). A small cave is also a “gruta” (grotto) or “spelunca”. In some countries cavers have categories based on length: grotto, cave cavern, big cavern, subterranean system.