I participated in YEHA Tour's one-day tours for two consecutive days, covering carefully selected Jeju Island attractions in the southwest and east, offering a comprehensive experience. Although the itinerary was a bit tight, thankfully all the tour members were punctual, and we got to see all the sights. Both days, our guide was Hailey, who was able to provide clear explanations in English and was happy to interact. She has experience as a Chinese tour guide, so you can chat with her to help her review her Chinese. For the eastern tour, I highly recommend Seongsan Ilchulbong Peak and Gwangchigi Beach. The volcano in the sea combined with the blue sky and white clouds is just too beautiful, truly deserving of its status as a World Natural Heritage site.