Huge cave formed by lava(Manjanggul)

#bucketlistreboot Manjanggul lava tube is the 12th longest lava tunnel in the world and is one of the must-visit places on Jeju island. Unlike normal caves formed by natural erosions, it was formed 300,000 years ago by the eruption of Mount Geomunoreum. Its total length is more than 7400 meters and its height can reach up to 25 meters in places. Since most of the cave is closed, you can only explore around 1 km from the entrance. Here you can see many magnificent examples of rocks with different animal shapes from molten lava. -The entrance fee is 4,000won and working hours are from 9am to 4pm Note:It is a good idea to come prepared as it is cold inside the cave. #cave #korea #jejuisland #travel