Okay kiddo, so let me tell you a story about a place called Krakatoa. It's not just a regular island, but it's actually a group of islands that are all close together - we call that a 'chain of islands' or an 'archipelago'. The Krakatoa archipelago is in Indonesia, a big country in Southeast Asia.
Now, the reason why people talk about Krakatoa is because of a big, scary thing that happened there a long time ago. You know how sometimes volcanoes can erupt and spew out hot lava and ash? Well, Krakatoa did something like that, but way worse.
Back in 1883, Krakatoa had a really, REALLY big eruption. It was so big that people heard it from hundreds of miles away. That's like if you could hear a loud noise all the way from one side of the U.S. to the other! The eruption was so powerful that it caused a tsunami - kind of like a huge wave of water - that killed thousands of people who lived nearby.
But that's not even the craziest part. The eruption was so huge that it actually changed the weather all over the world! That means that things like the temperature and how much sun there was in different places all got messed up because of what happened at Krakatoa.
Nowadays, Krakatoa is still there, but it's not dangerous like it used to be. People live there and sometimes visit to see the beautiful scenery and beaches. So even though something scary happened a long time ago, Krakatoa is also a reminder that nature can be really powerful and we should respect it.