And this is where around 18,000 athletes and officials will be staying during the games.

But the concern is that there could be a super spreader event at the Olympics.

It's raised a huge logistical challenge for the organizers.

You can't really create a kind of bubble situation for the Olympics.

So what they're doing is, they're creating controlled zones where they don't want people to leave.

[The Olympic Village is part of an archipelago of more than 40 controlled zones across Japan.]

[For around 60,000 foreign visitors including athletes, staff and media.]

Controlling people and making sure that they follow various rules will be a huge challenge.

So we are going to see how the organizers plan to make sure the world's biggest sporting event during the pandemic doesn't become a COVID hotspot.

So this is where the athletes are gonna be eating.

Of course, the dining area is one of the places at the Olympics where people like to socialize normally.

But that's one thing that the organizers want to avoid is a potential hotspot for virus transmission.

So most of the athletes will be eating by themselves.

This is the fitness center, and there are special precautions here as well, of course.

The organizers here say that they will be asking athletes to wear masks.

There's quite aggressive air circulation as well, but the machines are very close together, so this is a place where they are saying that if, uh, athletes come, and it's very busy, they will be turning them away at the door.

These are the condominiums that the athletes are gonna be staying in here in the village.

We can get up to eight athletes in one apartment.

[Athletes are encouraged to wear masks and use hand sanitizer while in their apartments.]

[Moving between zones.]

This is an event that's spread all over the country.

It's all around the Greater Tokyo region.

It's even 500 miles away in Hokkaido in the north, where the marathon is going to be held.

So the goal is to create this kind of archipelago of controlled zones across Japan.

When people travel between the village, say, and the Olympic stadium or other venues, there'll be dedicated bus and taxi links.

There will be punishments that will be imposed on people that go into the city.

The organizers even said that they want people to have the GPS tracking function turned on the smartphone when they come in.

[But there are some exceptions to these controlled zones.]

[Up to 10,000 Japanese spectators will be allowed each event.]

[Some of 70,000 Olympic volunteers, as well as Japanese media, will be allowed to move in and out of these zones.]

[Many of them will be vaccinated.]

The organizers have come up with some very strict rules about what people can and cannot do.

In general, in Japan, people do follow the rules.

But there's some concern here in Japan that people coming from overseas will be a bit more cavalier.

So you have quite a large movement of people around.

And that's a challenge to make sure that those people don't spread the virus amongst each other, and that we don't have a sharp increase which could put the Olympics really into crisis.