The Cave of Altamira is a place where people a long time ago drew pictures on the walls. The people who drew these pictures were called cave people and they lived many, many years ago. The cave is located in a country called Spain and it is very special because the pictures are still there for people to see even though it has been a very long time.
The pictures on the walls are really old and they were made using things that the cave people found around them like rocks and charcoal. The pictures show different animals like horses, bison, and deer, and sometimes they even show people hunting these animals.
The cave people didn't have any lights or electricity back then, so they had to use fire to see in the dark cave. This is how they were able to see what they were drawing on the walls.
Many years later, in the 1800s, some people found the cave and saw the drawings on the walls. They were amazed because they had never seen anything like it before. In the 1900s, scientists came to the cave and studied the drawings. They found out that the pictures were made a really long time ago, thousands of years before people had things like phones and computers.
Nowadays, the Cave of Altamira is a protected site where people can go and see the drawings. They can learn about the cave people and how they lived a long time ago. Even though the cave is very old, people still think it is very cool and important because it helps us understand what life was like a long, long time ago.