The government supports trade with South Korea, and businessmen seek profits, so there are more people from South Korea and Koreans, and it is also convenient to travel from Qingdao to South Korea. There are planes and cruise ships. As for whether it is expensive or not, I can't make it clear. Personally, I understand: do you have to compare the consumption level with other developed countries? There is also a difference between South Korea and here, and there is no comparison.