It's the coldest day in the country.The traditional market is also on the rise.

[Anchor]
The cold wave has frozen the whole country.

The traditional market was also hit by a cold wave, and the orchard was also on alert.

I'm reporter Hong Seong-wook.

[Reporter]
A hiking trail on Mt. Samak in Chuncheon, Gangwon Province.

The water in the valley flowing along the rock froze as it was under the breath of Dong-gun.

The frozen valley puddle is enough for a person to climb.

As the temperature plummeted below minus 15 degrees Celsius, the valley water was also frozen like this.

The weather is so cold that you can't even find climbers visiting the mountain.

Even traditional markets couldn't avoid the cold wave.

It's a market day that takes place every five days, but it's chilly.

I frequently soak my hands in warm water to melt my frozen hands, and light a fire to soothe the cold, but the cold does not go away easily.

It's colder because the merchants don't have any customers.

[Shim Myung-an / Traditional Market Merchant: I think it's the coldest. They say it's colder tomorrow, but the merchants' hearts are frozen, so it's actually a little hard.]

The cold is the same for animals.

The cows, which keep breathing, huddled together to share their body temperature, and the owner prepared warm water to freeze the bucket.

The orchard is also on alert due to the cold weather.

Even the staff of the Agricultural Research and Extension Services comes out and meticulously applies white paint to the base of the tree with farmers.

This is to prevent trees from freezing to death by reducing temperature changes in winter.

[Nam Jae-chang / Fruit farmer in Yecheon-gun, Gyeongsangbuk-do: It's more effective than wrapping paper because the light is reflected when you apply paint.]

[Kim Bo-hyun / Head of the horticultural crop team at Kyungpook National Institute of Agriculture and Technology: Nomads are weaker in the East Sea. Focusing on such farms, we are providing technical guidance such as applying water-based paint or keeping the lower part of the water pipe warm.

As the whole country froze in the strongest cold wave, citizens shrank a lot, and farmers are struggling to prepare for the cold wave.

I'm YTN's Hong Sung Wook.

Filmmaker: Hong Do-young Jeon Dae-woong