Jeju is absolutely beautiful! I have loved all the physical activity we have done with our excursions. Breathing in the fresh air while hiking up Seongsan Peak was exhilarating with the steps and views from multiple angles that changed as you were climbing. After getting to the top, seeing the crater looking down was breathtaking with how green it was inside with the deep blue ocean backdrop. Then going to the Manjanggul Lava Tube was just as spectacular but a completely different environment. The cave was cool, damp, and dark with nature made walls surrounding us. The low lighting made the ambiance extremely memorable and it exceeded my expectations of a cave. Overall great experience so far!