Okay, so let me try to explain this in a way a 5-year-old would understand.
Have you ever seen a big, wide river? That's what the Kong River is. It's a big river that flows through parts of China and Myanmar (which used to be called Burma).
Now, rivers are really important because they provide water for people and animals to drink, and they can also be used for transportation. People can put boats in the river and use them to carry things from one place to another.
But the Kong River is also really important because it's home to a lot of different plants and animals. For example, there are fish that live in the river, and birds that fly over it. If the Kong River wasn't there, these plants and animals might not have a place to live.
So, that's the Kong River. It's a big river that's important because it provides water and a home for plants and animals.