Mongolia 
PCR negative confirmation and vaccination certificate required when entering the country X
Only Koreans can enter Mongolia without a visa from 2 months ago
Flights become cheaper as low-cost airlines can operate in Mongolia
Mongolia has begun to emerge rapidly as it spreads a lot on Instagram such as desert stars and grasslands
Travel YouTubers’ travel videos to Mongolia are all in sync
However, traffic conditions are bad in Mongolia, so I have to find company