Worldwiode, many tens, perhaps a few hundred, of millions of years - as long as there have been karst uplands.
Many that formed in that time no longer exist because the landscapes in which they developed have long been eroded away.
The Waitomo Caves system is over 250 kilometers in length and around 120 meters deep. The main cave, known as the Glowworm Cave, is approximately 1.6 kilometers long.
People drew in caves during the Upper Paleolithic period, from around 40,000 to 10,000 years ago. These cave paintings have been found in various locations around the world, such as Lascaux in France and Altamira in Spain.
Most are in limestone uplands (as karst features). Some volcanic areas erupting basaltic lava have lava-tube caves. There are also minor caves in various rocks dotted around the world, such as fissure-caves created by mass-movement.
The Ajanta Caves were carved between the 2nd century BCE and 6th century CE, with the majority of the caves dating back to around the 2nd century BCE.
There are thousands of caves in the Philippines, with around 400 caves documented and explored so far. The limestone karst landscape of the country provides ideal conditions for cave formation and exploration.
Its been around since we lived in caves. There is no first designer.
how long has deforestation been around
As long as guns have been around.
Yes, People live in caves all over the world and have been doing so for a very very long time! Don't you think?
There are caves in many parts of Ireland. For example there are the Ailwee Caves in county Clare and the Dunmore caves in county Kilkenny. Thee are mountains all around Ireland and many caves can be found in them.
Yes, there are caves in many deserts around the world.
how long has the london eye been around for
As long as So Random has been around.
Since late 18C: they are not caves but stone mines last worked c.1810; and part of a series of such workings from St. Alhelm's Head to Durlston Head.
The Waitomo Caves system is over 250 kilometers in length and around 120 meters deep. The main cave, known as the Glowworm Cave, is approximately 1.6 kilometers long.
Caves in southern France. Caves in Santa Barbara, California. Caves in Spain.
there are in all around 29 caves in Ellora