An underground cave is a natural void that exists underground, and which -- according to Wikipedia -- is large enough for a human to enter.
Read more, below.
An underground cave is a hollow area beneath the Earth's surface that is typically formed by the erosion of rock or soil. These caves can vary greatly in size and shape and are often home to unique geological formations and ecosystems. Many underground caves are popular destinations for exploration and tourism.
If you were a speleologist, you would study caves and their physical, chemical, and biological features. This includes exploring cave formations, mapping cave systems, studying the underground environment, and investigating any unique life forms that may exist underground.
The synonym of catacombs is underground burial chambers.
Connected caves are called cave systems. These systems occur when several cave passages interconnect and form a complex network of underground tunnels and chambers.
Caves are typically formed from a combination of natural processes such as erosion by water, chemical weathering, and the dissolving of rock formations like limestone and dolomite. Over time, these processes create underground cavities and passages that can develop into complex cave systems.
A den is typically a natural underground hiding place or an enclosed area for an animal to rest or give birth. A cave is a natural underground space formed by the dissolution of soluble rock and often has openings to the surface. Den is more specific to animal habitats, while cave is a broader term for natural underground spaces.
ALL caves are underground by definition. It's where they are! :-)
Mammoth Cave.
Mammoth Cave is the largest cave system in all of Kentucky.
in the underground parts in lumbrige. eg: lumbridge castle cave.
The Sarawak Chamber is the largest known cave chamber in the world. The Sarawak Chamber is a cave that is located underground in the country of Malaysia.
it is, because if underground the mine can cave in.
It's a cave.
From the underground disco, you will find Ecto's Cave to the left.
Buckner's Cave
A plant that is thriving in a dark underground cave is likely to be an autotroph. Autotrophs can exist in areas that do not have organic materials.
Cave goblins are found in the underground part of Lumbridge. You have to follow the markings in the caverns to find the cave goblins.
A mining hole or cave.