Caves may seem like giant holes in the ground, but they are a magnificent work of art… by nature!! Caves take millions of years to form because they form when water erodes the rock inside of the cave. At first, the cave is just soft rock. Then, as the water seeps in through cracks in thne rock, it weathers the rock and carries the tiny pieces of rock away. Over millions of years, the water can form a giant cave! That is why caves take over a million years to form!
