The problem of going to Jeju Island Hotel

You prepare the address, name and telephone number of the hotel in advance and take it with you.

When you go through the customs in Korea, the customs may ask, and you can show it then.

Don't ask, you'll be fine.

The visa depends on your materials, which is generally no problem. Jeju island seems to have been exempted from signing for domestic teams. Is it simple for individuals?