Manjanggul Cave, Jeju Island, Korea

It was a wonderful cave, as it is registered as a UNESCO World Heritage Site. Even in summer, it was very cool inside, and water was dripping from above, so I wore a raincoat. Water wasn't dripping down in large quantities, so most people went in wearing normal clothes, but I'm glad I wore a raincoat to avoid the cold and water. I also brought a small flashlight. In the dark, the ground was rocky and unstable, and there were many puddles, and some people were slipping, so it's a good idea to bring a flashlight. Of course, it's best to wear sneakers that are easy to walk in. It took about 40 minutes to go back and forth along the route of about one kilometer while taking photos. #202308SummerTrip #KoreaTrip