I want to go to Jeju Island in August this year. What problems should we pay attention to?

It is appropriate to spend more won, and the tour guide can also change it, which is similar to the black market price. Now the black market is 1 RMB for 10000 won. I changed it in July. Don't follow the tour guide to the cosmetics store to buy cosmetics, but buy them at Silla duty-free point. Local cosmetics are very popular and cheap. For example, cicada skin care cream is 100 RMB per bottle, and I bought a lot anyway. You can also go to the local supermarket "e-mart" and close at night 10, which is only open to local people. I also bought a bottle of laundry detergent, which is quite good. It is sinking. Local products, such as Schisandra tea and honey, will definitely get a lot of kickbacks, but they are really delicious. Buy two bottles to bring back, because they are not sold in the supermarket. It's selling Jeju Island specialty chocolate, orange flavor. The local oranges are delicious, 5000 won 10, almost the same. I buy it every day. It's really sweet. When I came back, I checked them with 1000 won. I think I can have a look. Every time I finished checking, everyone ate it the next day. I will give you a picture of shame tomorrow, which is all my harvest.