Ever since moving to Jeju, I’ve wanted to check out Manjanggul Cave. Jeju was formed from a series of volcanic activity, making the island covered in beautiful black rock. I love the coast here, but this time I wanted to go a bit deeper…literally. The lava tunnel at Manjanggul Cave is one of the largest in the world and, even though only a certain section of it is open for viewing, I thought it’d be worth the hour and a half bus ride from my town. I sure wasn’t disappointed. Although it’s a popular tourist destination, as its UNESCO ranked, I enjoyed wandering through the tunnel for an hour; however, I was lucky and it wasn’t too crowded then. If you’re ever around northeast Jeju, stop by and check it out. If you don’t enjoy it, you’re only out a dollar.