The Geological Museum (지질박물관) in Daejeon offers engaging exhibits about geology with free admission, making it good for families and curious minds.
geology
Manjanggul Lava Tube [National Geopark] (만장굴 (제주도 국가지질공원)) Visitor Guide with Practical Tips
![Manjanggul Lava Tube [National Geopark] (만장굴 (제주도 국가지질공원)) Visitor Guide with Practical Tips](https://travelkorea.co.kr/wp-content/uploads/2026/02/tourist-spot-20260224-020045-4920.webp)
Discover the geological wonders of Manjanggul Lava Tube on Jeju Island—an impressive natural formation that offers insights into volcanic activity.
I Visited Bengdwigul Cave [UNESCO World Natural Heritage Site] (제주 선흘리 벵뒤굴 [유네스코 세계자연유산]) and Here Is What I Found
![I Visited Bengdwigul Cave [UNESCO World Natural Heritage Site] (제주 선흘리 벵뒤굴 [유네스코 세계자연유산]) and Here Is What I Found](https://travelkorea.co.kr/wp-content/themes/generatepress-child/images/tkn-default-og.webp)
Bengdwigul Cave showcases complex lava tube formations that reveal volcanic history. It’s an essential stop in Jeju for nature lovers and geology enthusiasts alike.
Hantangang River [National Geopark] (한탄강(국가지질공원, 고석정)) on a Budget: Can You Do It Cheaply?
![Hantangang River [National Geopark] (한탄강(국가지질공원, 고석정)) on a Budget: Can You Do It Cheaply?](https://travelkorea.co.kr/wp-content/uploads/2026/02/tourist-spot-20260212-053928-9d4c.webp)
Hantangang River National Geopark offers unique geological formations like Goseok Rock along with scenic views good for solo exploration.