How to use Baidu map to travel in Jeju Island?

Baidu map only supports domestic map data. If you want to travel, it is recommended to find a travel agency, which is affordable, safe and reliable. If it is a self-help tour, it is not easy to find an affordable place, such as a hotel or restaurant, because you are abroad, so you are not familiar with it. Travel agencies can do anything for you. There are many people, and it can be much cheaper.