ELI5: Explain Like I'm 5

Japan–Korea Undersea Tunnel

Okay kiddo, have you ever gone on an adventure in a tunnel? Imagine going on a really long tunnel that stretches all the way from Japan to Korea. Sounds exciting, right?

Well, this is what the Japan-Korea undersea tunnel idea is all about. It's a tunnel that would connect Japan and Korea through the bottom of the sea! Cool, huh?

The tunnel would be really long, like 510 kilometers, which is about the same distance as if you walked from your house to grandma's house and back 25 times! That's how long it would be to connect Japan and Korea underwater.

Now, why would anyone want to build such a tunnel? Well, it would make traveling between Japan and Korea a lot easier for people. Right now, you would have to take a plane or a boat to get from one country to the other. But with the tunnel, you could just drive or take a train, like those subway trains we take to school every day.

But building an undersea tunnel is not easy. It would be really hard to dig a tunnel through the bottom of the sea, and there are lots of things you have to think about, like water pressure and earthquakes. It would also be really expensive, like buying ALL the toys in a toy store kind of expensive!

So right now, building the Japan-Korea undersea tunnel is just an idea that some people are thinking about. But who knows, maybe one day it will become a reality, and we can go on an adventure through the tunnel all the way from Japan to Korea!